Electrical Sector Solutions Volume Electrical 14: Sector FusesSolutions Volume 14: Fuses
Volume 14 Fuses Tab 1 Fuses General....................................... V14-T1-1 Tab Expulsion Fuses..................................... V14-T-1 Tab Limiting Fuses................................ V14-T-1 Appendix 1 Eaton Terms & Conditions........................ V14-A1-1 Appendix Superseded Index................... V14-A-1 Appendix / Cross Reference..... V14-A-1 14
Copyright Dimensions, Weights and s Dimensions, weights and ratings given in this catalog are approximate and should not be used for construction purposes. Drawings containing exact dimensions are available upon request. All listed product specifications and ratings are subject to change without notice. Photographs are representative of production units. Terms and Conditions All prices and discounts are subject to change without notice. When price changes occur, they are published in Eaton s Price and Availability Digest (PAD). All orders accepted by Eaton s Electrical Sector are subject to the general terms and conditions as set forth in Appendix 1 Eaton Terms & Conditions. Technical and Descriptive Publications This catalog contains brief technical data for proper selection of products. Further information is available in the form of technical information publications and illustrated brochures. If additional product information is required, contact your local Eaton Products Distributor, call 1-800-55-000 or visit our website at www.eaton.com. Compliance with Nuclear Regulation 10 CFR 1 Eaton products are sold as commercial grade products not intended for application in facilities or activities licensed by the United States Nuclear Regulatory Commission for atomic purposes, under 10 CFR 1. Further certification will be required for use of these products in a safety-related application in any nuclear facility licensed by the U.S. Nuclear Regulatory Commission. WARNING The installation and use of Eaton products should be in accordance with the provisions of the U.S. National Electrical Code and/or other local codes or industry standards that are pertinent to the particular end use. Installation or use not in accordance with these codes and standards could be hazardous to personnel and/or equipment. These catalog pages do not purport to cover all details or variations in equipment, nor to provide for every possible contingency to be met in connection with installation, operation or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser s purposes, the matter should be referred to the local Eaton Products Distributor or Sales Office. The contents of this catalog shall not become part of or modify any prior or existing agreement, commitment or relationship. The sales contract contains the entire obligation of Eaton s Electrical Sector. The warranty contained in the contract between the parties is the sole warranty of Eaton. Any statements contained herein do not create new warranties or modify the existing warranty. Copyright 018 Eaton, All Rights Reserved.
Introduction Eaton Corporation is a global leader in power distribution, power quality, control and automation, and monitoring products. At Eaton, we believe a reliable, efficient and safe power system is the foundation of every successful enterprise. Through innovative technologies, cutting-edge products and our highly skilled services team, we empower businesses around the world to achieve a powerful advantage. In addition, Eaton is committed to creating and maintaining powerful customer relationships built on a foundation of excellence. From the products we manufacture to our dedicated customer service and support, we know what s important to you. Solutions Eaton takes the complexity out of power systems management with a holistic and strategic approach, leveraging our industry-leading technology, solutions and services. We focus on the following three areas in all we do: Reliability maintain the appropriate level of power continuity without disruption or unexpected downtime Using the Eaton Catalog Library Efficiency minimize energy usage, operating costs, equipment footprint and environmental impact Safety identify and mitigate electrical hazards to protect what you value most As we grow, it becomes increasingly difficult to include all products in one or two comprehensive catalogs. Knowing that each user has their specific needs, we have created a library of catalogs for our products that when complete, will contain 15 volumes. Since the volumes will continuously be a work in progress and updated, each volume will stand alone. Refer to our volume directory, MZ08100001E, for a quick glance of where to look for the products you need. The 15 volumes include: Volume 1 Residential and Light Commercial (CA0810000E) Volume Commercial Distribution (CA0810000E) Volume Power Distribution and Control Assemblies (CA08100004E) Volume 4 Circuit Protection (CA08100005E) Volume 5 Motor Control and Protection (CA08100006E) Volume 6 Solid-State Motor Control (CA08100007E) Volume 7 Logic Control, Operator Interface and Connectivity Solutions (CA08100008E) Volume 8 Sensing Solutions (CA08100010E) Volume 9 Original Equipment Manufacturer (CA08100011E) Volume 10 Enclosed Control (CA0810001E) Volume 11 Vehicle and Commercial Controls (CA0810001E) Volume 1 Aftermarket, Renewal Parts and Life Extension Solutions (CA08100014E) Volume 1 Counters, Timers and Tachometers (CA08100015E) Available in electronic format only Volume 14 Fuses (CA08100016E) Available in electronic format only Volume 15 Solar Inverters and Electrical Balance of System (CA08100018E) These volumes are not all-inclusive of every product, but they are meant to be an overview of our product lines. For our full range of product solutions and additional product information, consult Eaton.com/electrical and other catalogs and product guides in our literature library. These references include: The Consulting Application Guide (CA08104001E) The Eaton Power Quality Product Guide (COR01FYA) If you don t have the volume that contains the product or information that you are looking for, not to worry. You can access every volume of the catalog library at Eaton.com/electrical in the Literature Library. By installing our Automatic Tab Updater (ATU), you can be sure you always have the most recent version of each volume and tab. Volume 14 Fuses CA08100016E January 018 www.eaton.com i
Introduction Icons Green Leaf Eaton Green Solutions are products, systems or solutions that represent Eaton benchmarks for environmental performance. The green leaf symbol is our promise that the solution has been reviewed and documented as offering exceptional, industry-leading environmental benefits to customers, consumers and our communities. Though all of Eaton s products and solutions are designed to meet or exceed applicable government standards related to protecting the environment, our products with the Green Leaf designation further provide exceptional environmental benefit. Learn Online When you see the Learn Online icon, go to Eaton.com/electrical and search for the product or training page. There you will find 100-level training courses, podcasts, webcasts or games and puzzles to learn more. Drawings Online When you see the Drawings Online icon, go to Eaton.com/electrical and find the products page. There you will find a tab that includes helpful product drawings and illustrations. Contact Us If you need additional help, you can find contact information under the Customer Care heading of Eaton.com/electrical. ii Volume 14 Fuses CA08100016E January 018 www.eaton.com
Fuses General Limiting Fuses 1.1 Product Overview Power Fuse............................................. Power vs. Distribution..................................... Low vs. Medium vs. High Voltage............................ Expulsion vs. Limiting (Definitions per ANSI C47.40-199)... V14-T1- V14-T1- V14-T1- V14-T1-1 1 1 Limiting Fuse Types................................. General Fuse Component Terms............................. V14-T1- V14-T1-1 1 1 1 1 1 Expulsion Fuses 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T1-1
1.1 Fuses General Product Overview 1 1 1 1 Typical Eaton Fuses Contents Description Limiting Fuse Types................. Expulsion vs. Limiting (Definitions per ANSI C47.40-199)........... General Fuse Component Terms.............. Page V14-T1- V14-T1- V14-T1-1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Product Overview Power Fuse Eaton s roots in the medium voltage power fuse business began over 75 years ago under Westinghouse Electric. In 195, Westinghouse introduced the medium voltage boric acid expulsion fuse followed by the medium voltage current limiting fuse. Even today, medium voltage fuses continue to use that core technology. Eaton continues to build on the technology legacy by engineering high performance, cost-effective power fuse products. Eaton s medium voltage fuses are manufactured and tested to the requirements of the C7-4X series of standards that are maintained and updated regularly to maintain currency with industry practices. These standards are: IEEE Std. C7.40 IEEE Standard Service Conditions and Definitions for High Voltage Fuses, Distribution Enclosed Single- Pole Air Switches, Fuse Disconnecting Switches, and Accessories (ANSI). IEEE Std. C7.41 IEEE Standard Design Tests for High-Voltage (>1000V) Fuses, Fuse and Disconnecting Cutouts, Distribution Enclosed Single- Pole Air Switches, Fuse Disconnecting Switches, and Fuse Links and Accessories used with These Devices (ANSI). IEEE Std. C7.4 IEEE Standard Specifications for High-Voltage (>1000V) Expulsion-Type Distribution- Class Fuses, Fuse and Disconnecting Cutouts, Fuse Disconnecting Switches, and Fuse Links, and Accessories used with These Devices (ANSI). IEEE Std. C7.46 IEEE Standard Specifications for High Voltage Expulsion and Limiting Type Power Class Fuses and Fuse Disconnecting Switches. IEEE Std. C7.47 IEEE Standard Specifications for High Voltage Limiting Type Distribution Class Fuses and Fuse Disconnecting Switches. The following IEEE standards are also applicable to the fuse products covered in this publication: IEEE Std. C7.48 IEEE Guide for the Application, Operation, and Maintenance of High Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories (ANSI). IEEE Std. C7.48.1 IEEE Guide for the Classification, Application, and Coordination of - Limiting Fuses with Rated Voltages 1 8 kv. A better understanding of some fuse terminology will help you understand and select the correct fuse. The following is a brief overview of those terms. Power vs. Distribution The differentiation is intended to indicate the test conditions and where fuses are normally applied on an electrical system, based on specific requirements for generating sources, substations and distribution lines. Each class has its own unique set of voltage, current and construction requirements (see C7.4,.46 and.47). Low vs. Medium vs. High Voltage While fuses are defined in the ANSI standards as either low or high voltage, Eaton has elected to name their fuses to correspond with the equipment in which they are installed. Therefore, per ANSI C84, our fuses are named as follows: Low voltage 1000V and below Medium voltage greater than 1000 to 69,000V High voltage greater than 69,000V 1 V14-T1- Volume 14 Fuses CA08100016E August 011 www.eaton.com
Fuses General Product Overview 1.1 Expulsion vs. Limiting (Definitions per ANSI C47.40-199) An expulsion fuse is a vented fuse in which the expulsion effect of the gases produced by internal arcing, either alone or aided by other mechanisms, results in current interruption. A current limiting fuse is a fuse that, when its current responsive element is melted by a current within the fuse s specified current limiting range, abruptly introduces a high resistance to reduce current magnitude and duration, resulting in subsequent current interruption. Refer to Fuse Types Protection Range figure below for a features comparison. An expulsion fuse is not current limiting and as a result limits the duration of a fault on the electrical system, not the magnitude. Limiting Fuse Types There are three current limiting fuse types: Backup, General Purpose and Full Range. It is important that the user have an understanding of these definitions to ensure proper application of the fuse (see Fuse Types Protection Range figure below). General High Voltage Fuse Comparison Expulsion Vented Electromechanical Interrupts at current zero Generally higher voltage and current application capabilities Different time/current characteristics Fuse Types Protection Range i max. Maximum rated interrupting current i min. Minimum rated interrupting current i hr. causing element melting in 1 hour i Any current melting element with no time limit Backup Fuses A fuse capable of interrupting all currents from the maximum rated interrupting current down to the rated minimum interrupting current. Backup fuses are always used in a series with another interrupting device capable of interrupting currents below the fuse s minimum interrupting current. General Purpose Fuses A fuse capable of interrupting all currents from the rated interrupting current down to the current that causes melting of the fusible element in no less than one hour. General Purpose fuses are typically used to protect feeders and components such as transformers. Full Range Fuses A fuse capable of interrupting all currents from the rated interrupting current down to the minimum continuous current that causes melting of the fusible element, with the fuse applied at the maximum ambient temperature specified by the manufacturer. Limiting Sealed Static Limits fault current Generally higher interrupting ratings Different time/current characteristics General Fuse Component Terms Fuse Refill Unit (of an Expulsion Fuse) A fuse refill unit is a replaceable assembly containing the calibrated current-responsive fuse element and certain other items that facilitate current interruption. On its own, the refill unit has no interrupting ability. A refill unit must be mounted in a fuse holder with a spring assembly to form a refillable fuse unit. The refill unit is the section of the fuse that must be replaced after a fuse operation. Fuse Holder (of an Expulsion Fuse) A fuse holder is a reusable holder that when equipped with a fuse refill unit forms a fuse unit, capable of interrupting an overload or fault current. A fuse holder is supplied with a spring and shunt assembly, necessary to complete the internal interrupting assembly. The spring and shunt assembly is supplied with the fuse holder but is also available as a replacement part, as it may need replacement after several of heavy operations. Fuse Unit A fuse unit is a replaceable unit or assembly that is able, on its own, to perform current interruption. In the case of a refillable fuse unit, the refill unit must be replaced after a fuse operation. Where a complete fuse unit is supplied from the factory, the complete fuse unit must be replaced after a fuse operation. All currentlimiting fuses are fuse units. Exhaust Control Device When expulsion fuses are used in enclosures, exhaust control devices (filters, condensers or mufflers) are used to control the sound of the fuse operation, and to de-ionize and absorb the fuse exhaust products. These devices are normally supplied separately, because of different characteristics and ratings. They are reusable but may need replacement after several heavy operations. Mounting A mounting provides all the necessary parts to safely mount a fuse in its intended piece of equipment. The base is the metal support to which all other pieces attach. Insulators attach to the base and insulate the live fuse unit from the base and everything beyond the base. Live parts are the parts of the mounting that are energized once electricity is flowing. The live parts provide the means to hold the fuse unit in place, electrical contact, and a place to make line and load connections. Non-Disconnect Mounting A non-disconnect mounting does not provide a means for removing the fuse unit until the circuit is dead and the fuse unit can be removed manually. The fuse unit is held in place by friction through the use of fuse clips or by a cross bar. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Limiting Type BACKUP GENERAL PURPOSE FULL RANGE i i hr. i min. i max. Interrupting Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T1-
1.1 Fuses General Product Overview 1 1 1 1 1 1 1 1 1 1 Disconnect Mounting The disconnect mounting allows the fuse unit to be removed (off load) using an insulated switch stick. The switch stick grabs a pull ring and disconnects the fuse unit that may then be lifted out of its mounting. Dropout Mounting Dropout mountings are used in outdoor applications. The fuse unit is equipped with a mechanical trigger that unlatches the upper contact, allowing the fuse unit to drop out, increasing the dielectric separation, and providing visible indication of a blown fuse. Live Parts Live parts were briefly discussed as part of the Mounting definition. Everything above the insulators on the mounting excluding the fuse unit, fuse holder, and the fuse end fittings (if required) are considered the live parts. Fuse end fittings are discussed next and are not required with non-disconnect live parts, but are required and included with disconnect live parts. Live parts may be sold separately as replacement parts or for new OEM applications. End Fittings End fittings are metal parts that attach to each end of a fuse unit s ferrules (end caps). As previously mentioned, they are used solely with disconnect fuse applications or when converting a nondisconnect to a disconnect fuse configuration. When end fittings are ordered, a fitting for each end of the fuse is included. Keep in mind that end fittings can become damaged in use and, therefore, are sold separately from the live parts when necessary. It is not necessary to purchase an entire set of live parts when only the end fittings are required. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 V14-T1-4 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Eaton Expulsion Fuses.1 Product Overview Product Description....................................... Accessories............................................. s......................................... Refillable and Replaceable Fuses............................. Outdoor Applications....................................... Fuse Selection Voltage............................................ Interrupting........................................ Continuous.................................. Coordination.............................................. Application Transformer Application.................................... Repetitive Faults...........................................4 BA Type Fuses Product Description....................................... Selection.................................. Interrupting s....................................... Product Selection..........................................5 DBA Type Fuses Product Description....................................... Selection.................................. Interrupting s....................................... Product Selection..........................................6 DBU Type Fuses Product Description....................................... Construction............................................. Applications............................................. Interruption and Protection.................................. Testing and Performance................................... Installation.............................................. Selection.................................. Interrupting s....................................... Product Selection......................................... Dimensions...............................................7 RBA and RDB Type Fuses Product Description....................................... Installation.............................................. Applications............................................. Operation and Features.................................... Selection.................................. Interrupting s....................................... Product Selection......................................... Dimensions.............................................. V14-T- V14-T- V14-T- V14-T- V14-T- V14-T-4 V14-T-5 V14-T-7 V14-T-9 V14-T-1 V14-T-19 V14-T-0 V14-T-1 V14-T-1 V14-T- V14-T-7 V14-T- V14-T- V14-T- V14-T-9 V14-T-9 V14-T-40 V14-T-41 V14-T-4 V14-T-4 V14-T-44 V14-T-44 V14-T-45 V14-T-50 V14-T-5 V14-T-5 V14-T-5 V14-T-5 V14-T-58 V14-T-59 V14-T-60 V14-T-68 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-1
.1 Expulsion Fuses Product Overview Eaton Expulsion Fuses Contents Description s.......................... Refillable and Replaceable Fuses.............. Outdoor Applications....................... Page V14-T- V14-T- V14-T- Product Description Eaton s expulsion fuses use boric acid as the interrupting medium. Under a fault condition, arc heat decomposes the boric acid into water vapor. The water vapor blast de-ionizes the arc path preventing arc re-ignition after a natural current zero. RBA type indoor expulsion fuses must be fitted with a discharge filter or condenser, that moderates the discharge exhaust. The discharge filter limits the exhaust to a small and relatively inert amount of gas and lowers the noise level without affecting the fuse interrupting rating. Steam discharge, that can effect the interrupting, is fully restricted by the condenser. RDB type outdoor dropout fuses include an ejector spring that forces the arcing rod through the top of the fuse. The arcing rod strikes a latch on the mounting that forces the fuse to swing outward through a 180 arc into the dropout position. Refill units can be field installed into RBA and RDB expulsion fuses. Once the operated unit has been removed, the separately purchased unit can be easily installed into the fuse holder. DBU type fuse units are designed for new and aftermarket utility applications. End fittings are available, in both indoor and outdoor versions, as well as live parts and mountings. Mufflers confine the arc within the fuse and substantially reduce the noise and exhaust when the fuse interrupts. RBA E-Rated Refillable Boric Acid RDB E-Rated Refillable Outdoor Dropout Boric Acid DBU Dropout Boric Acid for Use Indoors, Inside Switchgear or Outdoors Accessories The following accessories are available for expulsion fuses: Mountings Mountings include a base, porcelain or glass polyester insulators, and live parts. They help enable the fuse to be safely attached to the gear. Mountings can be either disconnect, nondisconnect or dropout. Nondisconnect mountings are available in bolt-on or clamptype arrangements. Fuses may be vertical or underhung. Live Parts Live parts attach the fuse to the insulators and are considered part of the mounting. All parts above the insulators are live parts. End Fittings End fittings are metal parts that attach to each end of the fuse at the ferrules. They are used only on disconnect fuses or when converting a non-disconnect to a disconnect fuse. s Each Eaton fuse product is identified by a unique descriptive catalog number that contains major information such as the fuse family and item, and rated maximum continuous current and rated maximum application voltage where applicable. The catalog number does not change where form, fit and function remain unchanged, although the associated Eaton internal 10 character style number may change. Fuse products should be ordered by the descriptive catalog number. V14-T- Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Product Overview.1 Refillable and Replaceable Fuses Boric acid expulsion power fuses are divided into two types, refillable and replaceable. Refillable fuses are constructed so that the consumable refill unit can be removed and replaced after a fuse operation. Because the fuse holder and spring and shunt assembly components are reused, they can be constructed with a heavy duty design that also allows the unit to have a high interrupting capacity. Because these components are reused it is easy to change fuse current rating by simply changing the refill unit. The indoor refillable fuse is the RBA (Refillable Boric Acid) fuse. It is designed to be used indoor or in an enclosure with an exhaust control device that limits the discharge given off by the fuse during operation. Three types of exhaust control devices are available to limit the discharge. A condenser may be used that fully restricts the discharge but reduces the interrupting rating. A discharge filter is available that restricts discharge but not to a level that causes a reduction in the interrupting rating. A high capacity discharge filter is also available, but its use is restricted to certain applications on 15.5 kv equipment at maximum voltages below 14.4 kv. This device allows a higher interrupting rating, but allows more discharge. The outdoor refillable fuse is the RDB (Refillable Dropout Boric acid) fuse. RDB fuses cannot be equipped with exhaust control devices. The construction of the RDA and RDB is similar. They both utilize RBA refill units. The main difference in the internal construction is the ballistic kick-out pin that initiates the dropout action. Externally the RBD outdoor fuse holder tube has a protective coating of tough epoxy paint that provides ultraviolet protection. The fuse holder has a sealed weatherproof design. Typical Discharge Pattern from an Eaton Outdoor Boric Acid Power Fuse Innocuous Gases Intense Discharge up to Feet Vent End of Fuse Clouds of Water Vapor up to 6 Feet Vapor Clouds May Rebound From Ground Extending to 10 Feet Innocuous Gases A complete fuse consists of a fuse mounting, a fuse holder that includes the spring and shunt assembly, a refill unit, and an exhaust control device for indoor applications. These parts are shown in the RBA/ RDB section. Both disconnect and nondisconnect mountings are available for RBA fuses. Each of these mountings has front connected terminals. Indoor non-disconnect fuse holders have translucent tubes, and the lower end of the spring and shunt assembly is equipped with a bright orange cap to give a visual indication of fuse operation. RDB outdoor mountings must be disconnecting because of the dropout requirement to provide dielectric isolation and visible indication. BA type installations were made obsolete several years ago, but BA refill units are still available to enable re-fusing in existing applications. BA and RBA installations use the same exhaust control devices. RBA filters or condensers can be used to replace BA filters or condensers if required. Replacement BA mountings and fuse holders are not normally available. Replaceable fuses have a lower initial installed cost by providing a more cost effective construction. Replaceable fuses generally offer faster reconnection, but with higher replacement cost and lower interrupting ratings. Eaton offers a replaceable style DBU fuse for either indoor or outdoor applications. DBU fuses are lighter, less expensive fuses than the higher rated RBA/ RBD fuses. DBA fuse units are offered as replacement fuses, but DBA mountings are no longer available. Outdoor Applications For outdoor application of the RDB, DBU and DBA fuses, it is important that fuses that have not operated are not left hanging in the disconnected position for extended periods. If the weather seals on these fuses are broken or damaged, it is possible for water to enter and damage the fuse unit or fuse refill unit. The integrity of these seals is directly related to the integrity of the fuse unit or fuse refill unit. Seals should be checked periodically and an affected fuse unit or fuse refill unit replaced. The condition of the paint on the fuse unit should also be checked periodically. Eaton expulsion fuses use boric acid for the interrupting medium. When the fuse element melts, the heat of the arc decomposes the boric acid, releasing water vapor that cools and extinguishes the arc by blasting through it and exiting the bottom of the fuse. The interruption process produces both a flow of exhaust gas and a good deal of noise. To moderate the pressure wave and noise, an exhaust control device is added to indoor fuses. Exhaust control devices limit the exhaust to a small and relatively inert amount of gas while lowering the noise level, but have little or no effect on the interrupting rating of the fuse. Mufflers and condensers absorb and contain the exhaust while drastically reducing the noise level; however, a condenser or muffler may cause a reduction of the interrupting rating of the fuse. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-
. Expulsion Fuses Fuse Selection DBU Outdoor Mounting Contents Description Fuse Selection Interrupting...................... Continuous................ Coordination........................... Page V14-T-5 V14-T-7 V14-T-9 Fuse Selection There are four factors involved in the selection of a boric acid expulsion fuse. The first three considerations are the rated maximum voltage, the rated maximum interrupting current including the rate of rise of the transient recovery voltage, and the rated continuous current of the fuse. Proper attention must be given to each of these as improper application in any one of these areas may result in the fuse failing to perform its intended function. The fourth consideration is coordination with line and load side protective equipment that is needed to give selectivity of outage and to prevent premature operation. Each of these four areas is discussed in detail. Voltage The first consideration regarding fuse application is that the fuse selected must have a rated maximum voltage equal to or greater than the maximum power frequency voltage that could be impressed across the fuse under any possible conditions. In most cases, this means that the rated maximum voltage of the fuse must equal or exceed the system maximum line-to-line voltage. The only exception to this rule occurs when fusing single-phase loads connected from line-toneutral on an effectively grounded four-wire system. Here, the fuse rated maximum voltage need only exceed the system maximum line-to-neutral voltage, providing it is impossible for the fuse to experience the full line-to-line voltage under any fault condition. A good rule of thumb is that if more than one phase of the system is extended beyond the fuse location, the fuse rated maximum voltage must equal or exceed the system maximum line-to-line voltage, regardless of how the threephase system is grounded on the source side of the fuse or how the transformers or loads are connected on the load side of the fuse. It is a fairly common practice to fuse wye grounded wye transformers with fuses that have a rated maximum voltage that only exceeds then system line-to-neutral voltage. In most cases, this presents no problem, but the user should be aware of the remote possibility of a secondary phase-to-phase fault that could impose full line-to-line voltage across a single fuse. When only one phase of a four-wire effectively grounded system is extended beyond the fuse location to supply a load connected from phase-toneutral, it is usually acceptable to have the fuse rated maximum voltage equal or exceed the maximum lineto neutral voltage. It is permissible for expulsion fuse rated voltage to exceed the system voltage by any desired amount but under no circumstances may the system maximum voltage exceed the fuse rated maximum voltage. V14-T-4 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Fuse Selection. Interrupting Under no circumstance should a fuse be applied in a situation where the available fault current exceeds the interrupting rating of the fuse. The rated maximum interrupting current of a boric acid expulsion fuse is the rms value of the symmetrical AC component of the highest current that the fuse has been demonstrated to be able to interrupt under any conditions of asymmetry with specified circuit conditions. In other words, the rated maximum interrupting current denotes the maximum symmetrical fault current permitted at the fuse location. Historically, boric acid expulsion fuses have alternately been rated in terms of asymmetrical fault current. Asymmetrical currents are related to symmetrical currents by the asymmetry factor, which is the ratio of the rms values of the asymmetrical and symmetrical currents. The asymmetrical current includes the decaying DC component of the fault current. Asymmetry factors are a function of the circuit X/R ratio, and this relationship is shown below. Theoretically, the maximum asymmetry factor in a purely inductive circuit 1.7; however, with X/R ratios encountered in power circuits, it is rarely ever more than 1.6. Fuse standards suggest an asymmetry factor of 1.56 to 1.6. The minimum asymmetry factor at which Eaton boric acid expulsion fuses are tested to determine their rated maximum interrupting current is 1.6. In general, historically stated asymmetrical rms rated maximum interrupting currents can be converted to their rms symmetrical rated maximum counterparts by dividing the asymmetrical value by 1.6. Historically, a third way to state the interrupting rating of a boric acid expulsion fuse was with nominal three-phase kva ratings. Three-phase kva ratings are calculated by the formula kva = I x kv x 1.7, where I is the rated maximum interrupting current in symmetrical rms amperes and kv is the fuse nominal voltage rating. With this method, it must be kept in mind that fuses are not constant kva devices, that is, if the voltage is half the fuse rating, the interrupting current does not double but remains the same. The fuse will interrupt any current up to the rated maximum interrupting current as long as the power frequency voltage does not exceed the rated maximum voltage of the fuse. Interrupting ratings for each type of Eaton expulsion fuse are listed in the detailed sections for each fuse type. Asymmetry Factors Asymmetry Factor at 1/ Cycle 1.7 1.6 1.5 1.4 1. 1. 1.1 1 4 5 10 0 0 40 50 Circuit X/R Ratio When the fusible element in an expulsion fuse melts as the result of a fault, an arc is established within the fuse. Normal operation of an expulsion fuse causes elongation of the arc due to spring tension. The current continues to flow in the circuit and within the fuse until a natural current zero of the circuit is reached. When the arc is extinguished at a current zero, the voltage across the fuse terminals changes abruptly from a relatively low value of arc voltage to the power frequency recovery voltage. The rapid voltage change, in association with the inherent capacitance in the circuit, causes a short duration high frequency voltage oscillation to be superimposed on the power frequency recovery voltage. This combination of power frequency voltage and high frequency oscillatory voltage is known as the Transient recovery voltage. Transient recovery voltages produce high voltage stresses across the fuse terminals. The dielectric strength between the fuse terminals must rise faster than the transient recovery voltage if a successful interruption is to occur. The natural frequency of the transient recovery voltage is determined by the circuit inductance and capacitance, and the amplitude and decay rate are determined by the circuit resistance. The peak factor is the ratio of the highest (first) peak of the transient recovery voltage to the power frequency recovery voltage. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-5
. Expulsion Fuses Fuse Selection Primary faults, or faults on the primary side of a transformer, will generally produce higher short-circuit currents and less severe transient recovery voltages. Secondary faults produce lower fault currents and more severe transient recovery voltages. This is due to the insertion of the transformer impedance in the circuit. Eaton recognizes the effects of the different parameters involved in primary and secondary fault phenomena. These various conditions are also reflected in the test parameters called for in IEEE Std. C7.41-000. Eaton s line of expulsion fuses have proven their ability to successfully withstand the transient recovery voltage associated with both types of faults. The table on Page V14-T-6 lists the frequency of the transient recovery voltage and amplitude factors at which these fuses were tested. These conditions meet or exceed the requirements of the ANSI Standards. Transient Recovery Voltage Values for RBA, RDB and DBU Fuses Voltage kv Transient Recovery Voltage Values Nominal Maximum Design Primary Fault Recovery Frequency in khz Amplitude Factor Another consideration when applying power fuses is the altitude at which they are installed. The dielectric strength of air decreases with increasing altitude. De-rating is required for applications at altitudes above 1000 meters (00 feet). Correction factors for various altitudes are listed in IEEE Std. C7.40. Fuses are fault protective devices, and are overload tolerant not overload protective devices. By design, power type expulsion Secondary Fault Recovery Frequency in khz.40.75 9.0 1.6 6.0 1.6 4.16 4.80 9.0 1.6 6.0 1.6 4.80 5.50 9.0 1.6 6.0 1.6 7.0 8.5 9.0 1.6 6.0 1.6 1.80 14.40 5.5 1.6 17.4 1.6 14.40 15.50 5.5 1.6 17.4 1.6.00 5.50 4. 1.6 1.0 1.6 4.50 8.00.9 1.6 8.5 1.6 fuses are not intended to operate on fault currents below the secondary terminal fault of the associated transformer. Distribution type expulsion fuses can be used where the protection requirements call for a greater degree of overload protection. However, E-rated and K-rated fuses do not provide protection for fault currents less than two times the continuous current rating of the fuse. Amplitude Factor V14-T-6 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Fuse Selection. Continuous Eaton s expulsion fuses are designed to carry rated current continuously without exceeding the temperature and temperature rise limits permitted by IEEE Std. C7.40-00 when tested as specified in IEEE Std. C7.41-000. The ranges of continuous current ratings available in Eaton s fuses are shown in the table below. These current ratings carry either an E or a K designation as defined in ANSI C7.4-1996 or ANSI C7.46-000. The current responsive element of a power fuse with a continuous current rating of 100E or below shall melt in 00 seconds at an rms current between 00% and 40% of the continuous current rating. The current responsive element of a power fuse with a continuous current rating of above 100E shall melt in 600 seconds at an rms current between 0% and 64% of the continuous current rating. The current responsive element of a distribution fuse with a K designation on the current rating shall melt within the required time ranges specified for various current levels in Table 8 of ANSI C7.4-1996. Although the E and K ratings do not make time current curves identical, they do produce a similarity among different manufacturer s fuses, as they all must satisfy the same requirements. The E and K ratings also reflect the :1 minimum melting current versus continuous current rating that is a design feature of these fuses. Note that this similarity between the time current curves of E-rated expulsion fuses from various manufacturers does not imply that the time current curves of E-rated expulsion and current limiting fuses are similar even from the same manufacturer there are in fact, considerable differences, and this must be considered when comparing expulsion and current-limiting fuses. Continuous s Available in Eaton Expulsion Fuses Maximum Design kv RBA-RDB-00 Standard RBT-00 Time Lag RBA-RDB-400 Standard Note Using the two paralleled 800 fuse design, which has a 10% derating factor, ratings of 450, 540 and 70 are available. Power fuses are designed to continuously carry their rated current without exceeding temperature rise restrictions. If rated current is exceeded enough to cause the temperature or temperature rise limits to be exceeded, but the current is still below the 00 or 600 second melting current for a considerable length of time, a large amount of heat will be generated that may cause permanent damage to the fuse. Even though the DBU and RBA/RDB standard fuses employ silver elements that are not subject to thermal degradation unless the element temperature nearly reaches the melting temperature, caution should still be exercised when overloading the fuse as prolonged overheating will cause deterioration of the boric acid interrupting medium and charring of the fuse wall before the fuse element melts. The following curve shows the overload characteristics of Eaton s expulsion fuses. Do not exceed these overload restrictions under any circumstances. RBT-400 Time Lag DBU Standard DBU Slow DBU K-Rated In practice, expulsion power fuses are used to protect transformers and other equipment where overloads and inrush currents are common. As boric acid expulsion fuses have a rather low thermal capacity and cannot carry overloads of the same magnitude and duration as motors and transformers of equal continuous currents, general fuse application ratio of 1.4:1 fuse continuous current rating to full load current is suggested to prevent nuisance fuse operations on acceptable overloads and inrush conditions. Remember that this is only a general ratio for typical applications, and that ratios as low as 1:1 or as high as :1 can be used for specific applications. More specific application information can be found in the individual equipment applications sections that follow. DBA-1, Standard.75 10E to 00E 0E to 00E 0.5E to 400E1 0E to 400E1 5.50 10E to 00E 0E to 00E 0.5E to 400E1 0E to 400E1 8.5 10E to 00E 0E to 00E 0.5E to 400E1 0E to 400E1 0.5E to 00E 14.40 10E to 00E 0E to 00E 0.5E to 400E1 0E to 400E1 5E to 00E 15E to 00E K to 00L 0.5E to 00E 15.50 10E to 00E 0E to 00E 0.5E to 400E1 0E to 400E1 5E to 00E 15E to 00E K to 00L 0.5E to 00E 5.50 10E to 00E 0E to 00E 0.5E to 00E 0E to 00E 5E to 00E 15E to 00E K to 00L 0.5E to 00E 8.00 10E to 00E 0E to 00E 0.5E to 00E 0E to 00E 5E to 00E 15E to 00E K to 00L 0.5E to 00E Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-7
. Expulsion Fuses Fuse Selection Overload Characteristics for Eaton Expulsion Fuses Hrs. 6 4 Eaton s expulsion type fuses must not be paralleled to obtain continuous current ratings greater than those indicated, with the exceptions stated below. Satisfactory operation of untested parallel arrangements cannot be predicted. Corrections for applying expulsion fuses above 00 feet also apply to the continuous current ratings as well as the interrupting rating. De-rating is required for applications at altitudes above 1000 meters (00 feet). Correction factors for various altitudes are listed in IEEE Std. C47.40. 1 1/ Sec. 1000 600 00 Above 100A 100A or Less Average Melting Curves RBA-8, RDB-8 and BA-8 assemblies have been specifically tested to demonstrate their correct operation throughout the rated range of interrupting currents, with the specific physical arrangements shown. Remember that: Under no circumstances must the continuous rating of the fuse be less than the continuous load current E-rated fuses do not provide protection for currents below two times the continuous current rating 100 1 100% of Fuse V14-T-8 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Fuse Selection. Coordination In addition to selecting a fuse that meets the voltage, interrupting and continuous current ratings, it is important to examine the time-current curves of the fuse. These curves are designated as minimum melt and total clearing curves. The minimum melt curve gives the minimum amount of time in seconds required to melt the fuse elements at a particular value of rms symmetrical current under specified conditions. The total clearing curve gives the maximum amount of time in seconds to complete interruption of the circuit at a particular value of rms symmetrical current under conditions specified in ANSI C7.4-1996 or ANSI C6.46-000. The time-current curves for Eaton fuses are derived from tests on fuses at an ambient temperature of 5 degrees C and no initial loading as specified in IEEE Std. C7.46. Arcing time is defined as the amount of time in seconds elapsing from the melting of the fusible element to the final interruption of the circuit. It is important to examine these characteristics to assure proper protection and selectivity with other overcurrent protective devices. These curves are located in each fuse section of the catalog. The melting curves of all E-rated fuses must lie within the range defined in IEEE Std. C7.46 at either the 00 or 600 second point, but there are no limitations placed on the melting time at high currents. To take advantage of this, Eaton increases the applicability of their fuses by producing fast or standard fuses and slow or time-lag fuses. The curves for time-lag fuses are less inverse and allow for more of a time delay at high currents. The melting curves of all K- rated DBU fuses must lie within the ranges defined in IEEE Std. C7.4. Preloading Adjustment Factor for Eaton Expulsion Fuses Melting Time in Percent of Time Shown on Time- Characterist Curve F 100 50 Fuses 100A and Less Fuses Above 100A 0 0 50 100 150 00 50 P Load in Percent of Fuse Ampere Proper coordination of power fuses requires keeping the minimum melting current time-current curve above the total clearing time-current curve of any downstream protective device, and keeping the total clearing time-current curve beneath the minimum melting timecurrent curve of any upstream protective device. Manufacturers publish timecurrent curves based on standard conditions that do not allow for variables such as pre-loading or ambient temperature. Fuses subject to conditions other than the above will experience shifts in the time-current curves. For this reason, it is recommended that a safety zone be used to ensure that proper coordination is maintained allowing for these variables. Eaton recommends the use of a 10% safety zone on current for a particular value of time as it allows the safety band to be published on the left-hand side of all the time-current curves. Coordination is then achieved by overlaying curves and shifting one by the width of the published safety zone. Although the relevant ANSI and IEEE standards allow a 0% tolerance band on current between minimum and maximum melting characteristics, Eaton published characteristics in general only show a 10% tolerance band that can be seen for times greater than 0.5 second. Note that the published upper limit timecurrent curve is for total clearing, and not maximum melting. The total clearing time-current curve gives the maximum melting time plus the arcing time of the fuse. If desired or if unusual conditions exist, shifts in the time-current curve due to preloading may be examined individually. The following illustration gives the adjusting factor for preloaded fuses. These adjusting factors are valid only for Eaton power fuses. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-9
. Expulsion Fuses Application RBA Fuses Contents Description Application Transformer Application.................. Repetitive Faults........................ Repetitive Faults........................ Page V14-T-1 V14-T-19 V14-T-19 Application Use of the current generation of protection and coordination computer programs has taken much of the hard work out of checking coordination between medium voltage fuses and the upstream and downstream devices and protective equipment in the circuit. In addition, they allow detailed analysis of potential arc flash that could occur due to faults at particular circuit locations. Additional considerations such as the effects of cable run lengths can also be included in the fault current calculations to increase the accuracy of coordination and arc flash studies. However, a basic understanding of the coordination principles behind such studies is necessary for correct interpretation of the results. When applying expulsion fuses, physical as well as electrical properties must be considered. Expulsion fuses emit gases from the bottom of the fuse and as a result, care should also be taken to maintain minimum phase-tophase and phase-to-ground clearances when mounting fuses. Indoor fuses employ an exhaust control device, a discharge filter, a muffler or a condenser to absorb some or most of the exhaust from the fuse but specified clearances must still be maintained. Outdoor fuses are vented and thus have a high noise level and expel a greater amount of gas making clearance from ground an important consideration. However, the noise level of outdoor power fuses that employ boric acid solid material to control the arcing process is generally much lower, and the exhaust column is less violent than that associated with fuses employing links and cutouts, even at higher levels of interrupting current. When applying outdoor fuses, clearance must also be allowed for the arc that the fuse swings through during dropout. The tables on Page V14-T-11 give the minimum clearance to ground and the minimum phase spacing. Outdoor fuses are vented, and the venting of the hot gases resembles a cylindrical or narrowly conical column height above the minimum ground clearance. It is not really a factor except as related to rebounding from the ground of hot particles and gases. The illustration on Page V14-T- shows the nature of the discharge and allows the user to suggest specific safety zones for each particular application. V14-T-10 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Application. Recommended Spacings Typical Single Fuse Unit Typical Filter or Condenser Typical Vented A 400 B 800 400 800 B Typical paralleled fuse unit with standard Eaton mounting. Legend A = Recommended phase-to-phase centerline spacing without barriers B = Minimum clearance to ground (A) Recommended Phase-to-Phase Centerline Spacing without Barriers in Inches Maximum RBA Disconnect RBA Non-Disconnect RDB Design kv 00/400 800 00/400 800 00/400 800 DBU DBA (B) Minimum Clearance to Ground in Inches A.75 11.75 7.51 11.16 19.9 19.0 6.76 17.0 17.0 4.80 11.75 7.51 11.16 19.9 18.0 6.75 17.0 17.0 5.50 11.75 7.51 11.16 19.9 18.0 6.75 17.0 17.0 8.5 1.5 9.01 1.56 1. 18.0 6.76 17.0 17.0 14.40 14.75 0.51 1.06 1.8 4.0.76 19.0 19.0 15.50 16.5.01 15.56 4. 4.0.76 19.0 19.0 5.50 0.5 19.56 0.0 8.76.0.0 8.00 5.5 4.56 6.0 44.76 0.0 0.0 48.0.0 7.50 44.0 Maximum Design kv RBA Filter RBA Condenser RDB-00, DBU and DBA-1 Vented.75 7.5.0 17.5.0 4.80 7.5.0 17.5.0 5.50 8.5 4.0 17.5.0 8.5 8.5 4.0 17.5.0 14.40 11.5 6.0 1.0 6.0 15.40 11.5 6.0 1.0 6.0 5.50 15.0 8.5 6.0.0 8.00 19.5 1.0.0 4.0 48.0 (DBA only) 40.0 54.0 7.50 (DBA only) 54.0 84.0 RDB-400, 800 and DBA- Vented Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-11
. Expulsion Fuses Application Transformer Application Fuses are installed on the primary side of a transformer to: Protect the system on the source side of the fuses from an outage due to faults in or beyond the transformer (isolate a faulted transformer from an otherwise healthy distribution system to prevent further disturbance) in the case of an internal winding fault in the transformer, the fuse should prevent further collateral damage to the transformer and its surroundings (although the primary fuses will isolate a transformer with an internal fault from the primary system, expulsion fuses generally are not fast enough to prevent extensive damage to the transformer) Coordinate with protection on the low-voltage side of the transformer (transformer primary protection must be overload tolerant, allowing the secondary protection to clear faults occurring downstream of the secondary protection) Protect the transformer against bolted secondary faults (the fuse should operate on any bolted secondary faults, between the transformer secondary terminals and the secondary protection before the transformer is damaged usually thru-fault protection is provided to the transformer by a main secondary breaker or breakers and the main purpose of the primary fuses is to isolate a faulted transformer from the primary system) Protect the transformer against higher impedance secondary faults to whatever extent is possible (the fuse should limit damage to the transformer windings to the best extent possible) Selecting the proper voltage, interrupting and continuous current ratings for the fuse is straightforward and has been sufficiently covered in their respective sections. There are two sometimes conflicting factors when selecting a fuse to protect a transformer circuit. The continuous current rating must be large enough to prevent premature fuse interruption from magnetizing or inrush currents and it must also be large enough to prevent fuse deterioration or fuse interruption during normal or emergency overload situations. The fuse rating must also be small enough to provide the protection listed in the purpose hierarchy. Fuses on the primary side of transformers should not operate on transformer magnetizing or inrush current. The magnitude of the first loop of inrush current and the rate at which the peaks of subsequent loops decay is a function of many factors. Some of these are transformer design, residual flux in the core at the instant of energization, the point on the voltage wave at which the transformer is energized and the characteristics of the source supplying the transformer. When energizing, the heating effect of the inrush current can be considered equal to 1 times the transformer full load current for 1/10 of a second. Thus, when selecting the current rating for fuses used at the primary side of a transformer, the fuse minimum melting curve must lie above and to the right of the point on the timecurrent curve representing 1 times full load current and 0.1 seconds. The fuse whose minimum melting curve lies just above and to the right of this point is the lowest rated fuse that can be used at the primary terminals to satisfy the inrush requirements. This criterion is normally satisfied for all Eaton expulsion fuses if the fuse current rating is equal to or greater than the transformer self-cooled full load current. Thus, a fusing ratio as low as 1:1 could be used in selecting primary side fuses if inrush or magnetizing current were the only concern. Typical Fuse Transformer Coordination 1000 800 600 400 00 100 80 60 Time In Seconds 40 0 10 8 6 4 1 0.8 0.6 0.4 0. 0.1 0.08 0.06 0.04 0.0 0.01 40 A B 4.8 kv C B A 60 80 100 Minimum Melt 00 400 600 Total Clearing 800 1000 000 Scale x 10 = Secondary In Amperes RBA 00E 1000 kva 480V DS-416 100 LSI C C C DS-06 400 LI Breaker 4000 6000 8000 10000 LD LD SD SD I Amps PU T PU T PU BDS-416 100 IX 4 sec CCDS-06 400 IX 0 sec 4X 0.18 sec 1X 9X V14-T-1 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Application. System operators frequently overload their transformers for short periods of time during normal and emergency situations. To allow this flexibility, it is necessary to select a fuse that can carry the overload without deteriorating. To accommodate these overloads, a fusing ratio higher than 1:1 is almost always required when applying fuses for transformer protection. The fuse emergency overload curve on Page V14-T-8 along with the required extent of overloading is used to determine the smallest fuse that can be applied. Determine the minimum fuse rating by using the duration (ordinate) of the transformer overload on the fuse overload curve on Page V14-T-8 to obtain the multiple of the current rating that should not be exceeded. Divide the transformer overload current by the multiple obtained from the overload curve. The result is the minimum fuse current rating. Select the fuse rating that equals or is just larger than this value. The allowable time duration of the current in the primary side fuses during transformer overload should never exceed the values shown by the fuse overload curve on Page V14-T-8. Note: Short term and long term overloading of transformers will adversely affect the service life of the transformer. Also, increasing the primary fuse size to allow for higher overloads decreases the protection afforded the transformer. The extent to that transformers are overloaded and the implications for system security are economic decisions that are made by the system operator. Suggested minimum fuse sizes for protection of selfcooled transformers are given in the tables on Pages V14-T-14 and V14-T-15. These tables are based on the premise that the maximum 1.5 hour overload on the transformer would not exceed 00 percent of the transformer rating. This overload condition requires that the minimum ratio of fuse current rating to transformer full load current is 1.4:1. Fuse sizes listed in the tables on Pages V14-T-14 and V14-T-15 are those that are just higher than 1.4 times the transformer full load current. If higher or longer duration transformer overloads are to be permitted, a fuse with a higher continuous current rating may be required. The procedure described above should then be used to find the smallest permissible fuse size. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-1
. Expulsion Fuses Application Suggested Minimum Expulsion Fuse s Self-Cooled.4 to 1.0 kv Power Transformer Applications Nominal kv.4.4 4.16 4.16 4.8 4.8 7. 7. 1.0 1.0 Fuse Maximum kv 8. 8. 8. 8. 8. 8. 8. 8. 15.5 15.5 Transformer Full kva Self-Cooled Full Load Amps Fuse E-Ampere Full Load Amps Notes Two () 00E ampere fuse refills used in parallel with 10% derating factor. Two () 400E ampere fuse refills used in parallel with 10% derating factor. Two () 50E ampere fuse refills used in parallel with 10% derating factor. Fuse E-Ampere Full Load Amps Fuse E-Ampere Full Load Amps Fuse E-Ampere Full Load Amps Three-Phase Transformers 9.16 E 1.5 E 1.10 E 0.7 E 0.4 E 15.60 5E.08 E 1.80 E 1.0 E 0.7 E 0 7.0 10E 4.0 7E.60 5E.40 5E 1.44 E 45 10.80 15E 6.0 10E 5.40 10E.60 5E.16 E 75 18.00 5E 10.40 15E 9.00 15E 6.00 10E.60 5E 11 7.00 40E 15.60 5E 1.60 0E 9.00 15E 5.40 10E 150 6.00 50E 0.80 0E 18.00 5E 1.00 0E 7.0 10E 5 54.00 80E 1.0 50E 7.0 40E 18.00 5E 10.80 15E 00 7.00 100E 41.60 65E 6.00 50E 4.00 40E 14.40 0E 500 10.00 00E 69.40 100E 60.00 100E 40.00 65E 4.10 40E 750 180.00 50E 104.00 150E 90.00 15E 60.00 100E 6.10 50E 1000 41.00 400E 140.00 00E 10.00 00E 80.00 15E 48.10 80E 1500 60.00 540E 08.00 00E 180.00 50E 10.00 00E 7.00 100E 000 481.00 70E 78.00 400E 41.00 400E 160.00 50E 496.0 150E 500 600.00 46.00 540E 01.00 450E 00.00 00E 10.00 00E 750 180.00 50E 5000 41.00 400E Single-Phase Transformers 5.08 E 1.0 E 1.04 E 0.69 E 0.416 E 10 4.17 7E.40 5E.08 E 1.9 E 0.8 E 15 6.5 10E.60 5E.1 5E.08 E 1.5 E 5 10.40 15E 6.00 10E 5.0 10E.47 5E.08 E 7 15.60 5E 9.00 15E 7.80 15E 5.1 10E.1 5E 50 0.80 0E 1.00 0E 10.40 15E 6.95 10E 4.16 7E 75 1.0 50E 18.00 5E 15.60 5E 10.40 15E 6.5 10E 100 41.70 65E 4.00 40E 0.80 0E 1.90 0E 8. 15E 167 70.00 100E 40.00 65E 5.00 65E.0 40E 1.90 0E 50 104.00 150E 60.00 100E 5.00 80E 4.80 50E 0.80 0E 19.00 00E 80.00 15E 69.50 100E 46.0 65E 7.70 40E 500 08.00 00E 10.00 00E 104.00 150E 69.60 100E 41.60 65E 667 78.00 400E 160.00 50E 19.00 00E 9.60 150E 55.40 80E 8 47.00 540E 00.00 00E 17.00 50E 115.50 00E 69.40 100E 150 51.00 70E 00.00 540E 60.00 400E 174.00 50E 104.00 150E Fuse E-Ampere V14-T-14 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Application. Self-Cooled 1. to 4.5 kv Power Transformer Applications System Nominal kv 1. 1. 1.8 1.8 14.4 14.4.9.9.9.9 4.9 4.9 4.5 4.5 Fuse Maximum kv 15.5 15.5 15.5 15.5 15.5 15.5 5.5 5.5 5.5 5.5 5.5 5.5 8.0 8.0 Transformer Full kva Self-Cooled Full Load Amps Fuse E-Ampere Full Load Amps Fuse E-Ampere Full Load Amps Fuse E-Ampere Full Load Amps Fuse E-Ampere Full Load Amps Fuse E-Ampere Full Load Amps Fuse E-Ampere Full Load Amps Three-Phase Transformers 9.00 0.40 E 0.8 E 0.6 1/E 0. 1/E 0.1 1/E 0.0 1/E 0.15 1/E 15.00 0.66 E 0.6 E 0.60 E 0.8 E 0.6 1/E 0.5 1/E 0.5 1/E 0.00 1. E 1.5 E 1.0 E 0.75 E 0.7 E 0.69 E 0.50 E 45.00 1.98 E 1.88 E 1.80 E 1.14 E 1.09 E 1.04 E 0.75 E 75.00.0 5E.10 5E.00 5E 1.89 E 1.81 E 1.74 E 1.5 E 11.50 4.95 7E 4.70 7E 4.51 7E.84 5E.7 5E.60 5E 1.88 E 150.00 6.56 10E 6.0 10E 6.01 10E.78 7E.6 5E.47 5E.51 5E 5.00 9.90 15E 9.40 15E 9.0 15E 5.68 10E 5.44 10E 5.1 10E.77 7E 00.00 1.10 0E 1.50 0E 1.00 0E 7.58 15E 7.5 10E 6.94 10E 5.0 7E 500.00 1.90 0E 1.00 0E 0.10 0E 1.60 0E 1.10 0E 11.60 0E 8.7 15E 750.00.80 50E 1.00 50E 0.10 50E 18.90 0E 18.10 5E 17.40 5E 1.60 0E 1000.00 4.70 65E 4.00 65E 40.10 65E 5.0 40E 4.0 40E.10 40E 16.70 5E 1500.00 65.60 100E 6.00 100E 60.10 65E 7.90 65E 6.0 50E 4.70 50E 5.10 40E 000.00 87.50 15E 84.00 15E 80.0 15E 50.50 80E 48.0 80E 46.0 65E.50 50E 500.00 109.00 150E 104.00 150E 100.00 150E 6.10 100E 60.40 100E 57.90 80E 41.80 65E 750.00 165.00 50E 156.00 50E 150.00 50E 94.70 150E 90.60 150E 86.60 15E 6.80 100E 5000.00 18.00 00E 10.00 00E 00.00 00E 16.00 00E 11.00 00E 116.00 00E 8.70 15E Single-Phase Transformers 5.00 0.8 E 0.6 E 0.5 1/E 0. 1/E 0.1 1/E 0.0 1/E 0.14 1/E 10.00 0.76 E 0.7 E 0.69 E 0.44 E 0.4 E 0.40 E 0.9 1/E 15.00 1.14 E 1.09 E 1.64 E 0.66 E 0.6 E 0.60 E 0.4 E 5.00 1.90 E 1.81 E 1.74 E 1.09 E 1.05 E 1.00 E 0.7 E 7.50.84 5E.71 5E.60 5E 1.64 E 1.57 E 1.50 E 1.09 E 50.00.80 7E.6 5E.47 5E.19 E.09 E.00 E 1.45 E 75.00 5.70 10E 5.4 10E 5.1 10E.8 5E.14 5E.01 5E.17 E 100.00 7.60 15E 7.4 10E 6.94 10E 4.7 7E 4.18 7E 4.01 7E.90 5E 167.00 1.70 0E 1.10 0E 11.60 0E 7.1 10E 6.99 10E 6.70 10E 4.84 7E 50.00 19.00 0E 18.10 5E 17.40 5E 10.90 15E 10.50 15E 10.00 15E 7.5 10E.00 7.70 40E 5.0 40E.10 40E 14.60 0E 1.90 0E 1.40 0E 9.65 15E 500.00 8.00 65E 6.0 50E 4.70 50E 1.90 0E 0.90 0E 0.10 0E 14.50 0E 667.00 50.50 80E 48.0 80E 46.0 65E 9.0 40E 7.90 40E 6.80 40E 19.0 0E 8.00 6.50 100E 60.40 100E 57.90 80E 6.40 50E 4.90 50E.40 50E 4.10 40E 150.00 95.00 150E 90.60 15E 86.80 15E 54.70 80E 5.0 80E 50.10 80E 6.0 50E Fuse E-Ampere Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-15
. Expulsion Fuses Application If provisions are made to limit transformer overloads to a lower range, by thermal or other protective devices, the ratio of fuse current to transformer full load current can be less than 1.4:1. To find the amount of reduction permissible without damage to the fuse, the procedure using the overload curve should be employed. When the transformer has forced cooling, the minimum fuse size that can be applied should be based on the transformer top rating and the extent to which the transformer will be overloaded beyond the top rating. It should be remembered that E- or K-rated expulsion fuses applied at the primary terminals of a transformer do not provide protection for currents below two times the continuous current rating of the fuse. That is, for currents that exceed the time limits shown by the fuse overload curve on Page V14-T-5, the fuse may have deteriorated before the fusible element melts. In order to provide dependable overload protection for the transformer, protection must be applied on the secondary side of the transformer. Equal concern should be given to the upper limit of continuous current rating that will provide protection for the transformer. The extent to which the fuses are to protect the transformer against secondary faults is one of several factors that determines the upper limit. When a main secondary breaker is not used, the primary fuses may be the only devices that provide thru-fault protection for the transformer. In these circumstances the fuse should operate before the transformer windings are damaged due to heavy currents. The capability of transformer windings to carry these thru-fault or heavy currents varies from one transformer design to another. When specific information applicable to individual transformers is not available, the transformer heat curves shown on Page V14-T-18 can be used to evaluate the thru-fault protection offered the transformer by the fuses. The curve labeled N=1 is drawn through the points defined in IEEE Std. C57.9, such that the curve has the same shape as shown in Figure 1 of IEEE publication 7 titled, Guide to Protective Relay Application to Power Transformers. This curve applies to single-phase transformers and to threephase faults on three-phase transformer banks. Curves for values of N other than 1 apply to unsymmetrical faults on three-phase transformers and three-phase transformer banks that have at least one delta connected winding. Ideally, the total clearing time-current of the primary fuse would lie below the heat curve for all values of current up to 5 times the transformer rated current. However this is not usually possible as the fuse has minimum limitations placed on the rating due to long time overload impressed on the transformer and the fact that - E-rated expulsion fuses do not provide protection for currents below two times their continuous current rating. In spite of these lower limitations, primary side fuses should protect the transformer for bolted secondary faults and higher impedance secondary faults to whatever extent is possible. Wye connected transformers, regardless of whether or not the neutral is grounded, tied to the system neutral or floating have line currents that are equal to the winding currents for faults external to the transformer. Thus a fuse connected to the terminal of a wye connected winding will see the same current that is in the winding for all faults external to the transformer. Also, there is a simple relation between the primary and secondary amperes, whether or not load of fault currents are being considered. This is not the case when the transformer has a delta connected winding, either on the primary or the secondary side of the transformer. With delta connected primary windings the current in the lines (fuses) supplying the delta winding and currents in the primary delta windings generally are not equal, and of greater importance, the ratio of line (fuse) current to the winding current varies with the type of fault on the external system. With delta connected secondary windings, the current in the transformer secondary windings is generally not equal to the secondary line current, and the ratio of primary line current to the secondary line current varies with the type of fault on the secondary system. V14-T-16 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Application. The relationship between rated line (fuse) current and rated winding current (referred to as the base current of the winding in IEEE/ANSI Std. C57.1.00 ) is 1 for wye connected primaries and is 1/ for delta connected primaries. IEEE/ ANSI Std. C57.1.00 also indicates that the transformer winding shall be capable of withstanding 5 times rated winding current for two seconds and smaller multiples of rated winding current for longer periods of time. However, transformer overloads and faults are generally expressed in terms of line and not winding current. This could present a problem for fault conditions where the type of fault changes the relationship between the line and the winding current. The table below gives a multiplier that will translate the line current in multiples of the winding current for different type faults for various transformer windings. These tables lead us back to the transformer heat curves shown where it can be verified that the curve N=1 passes through the point 5 times full load line current at two seconds. The curves for other than N=1 are for unsymmetrical faults as can be seen from the table below. Coordination diagrams employ the transformer heat curves and fuse time current curves to determine which fuse rating may be safely applied. These diagrams are the tools used to apply the information previously cited. The most straightforward diagram involves fuses applied at the terminals of transformers with wye primary windings. The table below shows that the fuse current is the same as the winding current for all faults external to the transformer. This means the coordination diagram consists simply of the direct reading of the fuse time-current curves and the transformer heat curve N=1 for coordination diagrams where the abscissa is labeled in amperes in the primary system. To coordinate with the abscissa labeled in secondary amperes, the same two curves are shifted to allow for the ratio between the primary and secondary amperes. Multiples of Primary Line for Fixed Secondary Winding Transformer Connection All Neutrals Grounded When fuses are employed at the terminals of a delta-wye transformer, the coordination diagram becomes a bit more involved. In this instance, the table below shows that the fuse current varies in relation to the winding current depending on the nature of the fault. Thus, when the coordination is with respect to primary amperes, the diagram consists of one direct reading fuse timecurrent curve and one or more transformer heat curves. The number of heat curves included would be determined by the types of secondary faults considered. The table below gives the N curve to be used for the different faults to be considered. When the coordination is with respect to secondary amperes the diagram consists of one transformer heating curve (N=1) and up to three fuse time-current curves. The three time-current curves are again dependent on the possible faults to be considered. The table below shows that to obtain proper coordination after the curve is translated to secondary amperes, it must be shifted 1/ when phase-to-ground faults are considered and / when phase-to-phase faults are considered. N (N Times Secondary Winding Gives Multiples of Primary Line ) Primary Secondary Three-Phase Fault Phase-to-Ground Fault Phase-to-Phase Fault Y Y 1 1 1 Y D 1 1 D Y 1 1/ / D D 1 / Regardless of whether a primary or secondary current abscissa is employed, a coordination diagram for a delta-wye transformer shows that the primary side fuses do not protect the transformer for high impedance secondary faults and overloads. This type of protection can be obtained through the application of secondary side breakers. If a secondary breaker were used, it would be added to the coordination diagram by plotting the breaker phase and ground trip characteristics. Selective coordination would exist if the breaker phase trip characteristic curve lies below the fuse characteristic for a phase-to-phase fault and the heating curve, and breaker ground trip characteristic for a single lineto-ground fault and the heat curve. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-17
. Expulsion Fuses Application The preceding pertains to diagrams using secondary amperes. If the breaker characteristic is to be translated to primary amperes, its characteristics must lie beneath the fuse characteristic and the heating curve for N=1. For unsymmetrical faults the breaker characteristic will shift by the same multiple as the heating curve. If further secondary protection is translated to the primary, the characteristic must lie beneath the secondary breaker characteristic for the different types of faults considered. Fuses used at the terminals of a delta-delta transformer require: 1. fuse time-current curves and. heat curves if both three-phase and phase-to-phase faults are to be considered. This agrees with the information presented in the table on Page V14-T-17. When the abscissa is in primary amperes the curves are read directly. An abscissa in secondary amperes uses the same curves but shifts them from primary to secondary amperes. When using the current generation of protection and coordination computer programs, all the factors such as the ratios of line to winding ratios and transformation ratios should be accounted for by the software if the transformer details are correctly entered into the program, and it should only be necessary to correctly interpret the program plots to evaluate the levels of secondary to primary protection, and the level of transformer overload protection afforded by a selected fuse rating. For all the coordination diagrams discussed above, the vertical distance between the total clearing curve and the safe heat curve indicates the margin of protection offered for different types of faults. It should be remembered, however, that the transformer heat curves illustrated in this application data are drawn from the reference previously cited and they may not apply to all transformer designs. In practice, it is not always possible to select a fuse large enough to allow for all the over-loading required and still provide complete protection for the transformer. In these cases, the user should decide where his priorities lie and trade off overloading ability for transformer protection. Typical Transformer Heat Curves 10000 8000 6000 4000 000 1000 800 600 Time in Seconds 400 00 100 80 60 40 0 10 8 6 4 Transformer Full Load Adjusted Heat Curves Capacitor Application Another common use of power fuses is for the protection of capacitor banks. This application is unique in that the protected equipment, capacitors, are designed with a zero minus tolerance and some value positive tolerance. For this N=A/ N=1 N= / N=1/ Inrush 0.6 0.8 1 4 6 8 10 0 40 60 80 100 Line in Multiples of Transformer Full Load (Rated) Line reason a ratio of 1.65:1 fuse rating to full load current is suggested for all single bank protection. If two or more banks are paralleled with automatic switching, refer to Eaton Technical Support for fusing information. V14-T-18 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses Application. Repetitive Faults Temperature Cycle of a Fuse During Reclosing Operation Percent Temperature Rise T% 100% 80% 60% 40% 0% N M.75M 0 p1 p 1 4 Unit Time Relative Time t/ t = Time in Seconds Constant = Time Constant of Fuse Curve A Basic fuse heating curve: T f (I-e t/ ) Curve B Basic fuse cooling curve: T f x e t/ ) Curve C Temperature rise curve of fuse subjected to reclosing cycle M Melting time of fuse at a given fault current N Total clearing time of fuse at same fault current T m, T n Levels of melting temperature of fastest and of slowest fuse (See note below) T s Safe temperature level, considering service variables T f Hypothetical steady-state temperature level (100%) attained if the fuse element did not open when melting temperature was reached but continued to be a resistance of constant value It is often desirable to determine the performance of fuses under repetitive faults such as produced by the operation of reclosing circuit breakers. This performance is determined by graphically simulating the heating and cooling characteristics of the fuse, which are found and expressed by the melting time-current curves. The theory behind the above implications is available upon request, but in this section only the practical use of those implications will be discussed. 1 4 T r Note: The absolute temperature at which the elements of the fastest and of the slowest fuse melt is the same since both fuses are made of the same material, However, T n and T m are different if measured by the final temperature level if reached at a given current. A B C T n T m T s Conventional E-rated fuses can with good approximation be regarded as bodies whose heating and cooling properties are described by the basic exponential curves A and B as shown above. Except for being inverted, the cooling curve is the same as the heating curve as both have the same time constant. Each fuse has a specific time constant that can be calculated with sufficient accuracy by the formula θ = 0.1S where S is the fuse speed ratio, that is, the melting current at 0.1 seconds divided by the melting current at 00 or 600 seconds. The 00 seconds applies to fuses rated 100A or less and the 600 seconds for fuses rated above 100A. The time constant of a specific fuse, having been obtained in terms of seconds, gives to the general heating and cooling curves shown below a specific time scale. In enables us to plot the course of the fuse Reclosing Circuit Breaker Fuse Coordination Percent Temperature Rise T% 100 80 60 40 0 10 8 6 4 Q MMN P-4 Next we must determine the temperature at which the fuse element will melt. Here we refer to the standard timecurrent curves and find the melting time M for specific value of fault current. The melting temperature T m lies where the ordinate to the time M intersects curve A. It is not necessary to know the absolute value of this temperature, as it is sufficient to know its relation to the peaks. A similar temperature T n can be found using the total clearing time for the specific fault current. What we have then are two temperatures where we can state that any time the curve C intersects the line T m, the fuse could operate and any time it intersects line T n the fuse will definitely operate. The gap between T m and T n indicates the tolerance range as set forth in ANSI and NEMA standards where E-rated fuses are defined. temperature (in percent values) if we know the sequence and duration of the open and closed periods of the recloser. This is illustrated by curve C that is formed by piecing together the proper sections of curves A and B. P-5 1 0.5 1 1.5.5 Relative Time t/ t = Time in Seconds = Time Constant of Fuse Notes: Recloser data: 400PR (cycling code A1-CH). Fuse type and rating: CLT (drawout) 8. kv 150 C. Fuse speed ration, S-150/40 = 5.11. Thermal time constant, = 0.10 S,.61 seconds. Fault current 150A. A Heating Cooling B If the fuse is not to operate, curve C must remain below the level T m by a safe margin. It is common practice to provide such a safety margin by coordinating the breaker with a fuse curve whose time ordinates are 75 percent of those of the melting curve. Line T s represents this temperature in illustration above. Although the construction of the temperature diagram as outlined above basically offers no difficulties, the manipulation is made easier and more accurate by putting the graph on semi-log coordinates as shown. On these coordinates, the cooling curve B becomes a straight line. C Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-19
.4 Expulsion Fuses BA Type Fuses BA Fuseholder Contents Description BA Type Fuses Selection................ Interrupting s..................... Product Selection....................... Page V14-T-1 V14-T-1 V14-T- BA Type Fuses Product Description The refillable BA type (boric acid) high voltage expulsion fuse is an E-rated fuse that can be vented (outdoor) or enclosed (indoor). These fuses are designed for power applications and were introduced by the Westinghouse Electric Company in the middle 190s. The refill units have been in continuous production since that time and are still available for use in existing installations. Mountings are no longer available for use with BA refill units, but a limited range of replacement fuse holders is still available. New and replacement applications should use RBA fuses that superseded BA fuses a number of years ago. Introduction BA power fuses provide protection for circuits and equipment that operate on voltages from 7. to 8 kv. When the calibrated current responsive element melts, the fuse reacts rapidly to de-ionize the arc and interrupt the circuit. On outdoor vented installations, a mechanical dropout action gives a 180 air break. On indoor applications, the arc exhaust is absorbed by the attached exhaust control device (filter or condenser). The fuse refill unit is of the replaceable type rather than the renewable type, resulting in light weight for ease in handling. Construction DE-ION arc interruption permits application of the BA type power fuse over a range of system voltages. This line of dropout fuses carries the boric acid principle of circuit protection to higher voltage ratings, and at the same time provides short-circuit protection for systems of moderate capacity at a lower cost. Main operating parts are the fusible element, arcing rod, helical spring, and dry boric acid cylinder. To prevent warping under outdoor conditions, a heavy glassepoxy or ceramic tube encloses the entire assembly. This glass-epoxy tube also assures adequate strength to contain the force of the arc interruption. Within the fuse, the current path is maintained by tight electrical connections. From the top ferrule, the path is through the extended spring and shunt assembly; then to the arcing rod, on through the fusible element that is bridged by the mechanical strain element, and into the bottom ferrule. When the fuse element melts, the arcing rod is pulled upward drawing the arc into the boric acid cylinder. As it strikes, intense heat from the arc decomposes the compressed boric acid powder. Decomposition of the dry boric acid forms water vapor and boric acid anhydride. The electrical interruption is caused by the steam cooling and de-ionizing the arc as it is drawn through the cylinder by the action of the spring and rod. Operation BA type fuses are of the refillable type. When a fuse operates due to a fault blown, the fuse holder is removed with from the mounting. After replacement of the refill unit, the fuse holder can be reinserted into the fuse mounting. Application BA fuses are applied in utility and industrial high voltage power systems for protecting: Power transformers Feeder circuit sectionalizing Distribution transformers Potential transformers s 8. to 8 kv 0.5E to 400E Amperes V14-T-0 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses BA Type Fuses.4 Selection BA Fuse Units Interrupting s BA Fuse Interrupting s Refill Maximum Rated Voltage kv Maximum System Voltage kv Vented or with Filter rms Symmetrical ka Maximum kv 8 = 8. kv 15 = 15.5 kv 5 = 5.5 kv 8 = 8 kv 8..75 17.5 10.0 5.5 17.5 10.0 8. 16.0 10.0 15.5 15.5 1.5 8.0 5.8 5.8 10.0 6. 8 8 6. 5.0 15 BA 100E Type BA BA4 With Condenser rms Symmetrical ka Amperes 0.5 5E 7E 10E 0E 5E 0E 40E 50E 65E 80E 100E 15E 150E 00E 50E 00E 400E Hardware NH Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-1
.4 Expulsion Fuses BA Type Fuses Product Selection BA Type Expulsion Fuse Refill Units Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 7. 8. 0.5 8BA-.5 1.0 (0.45) TC8115801 TC801601 7. 8. 5E 8BA-5E 1.0 (0.45) TC8115801 TC801601 7. 8. 7E 8BA-7E 1.0 (0.45) TC8115801 TC801601 7. 8. 10E 8BA-10E 1.0 (0.45) TC8115801 TC801601 7. 8. 15E 8BA-15E 1.0 (0.45) TC8115801 TC801601 7. 8. 0E 8BA-0E 1.0 (0.45) TC8115801 TC801601 7. 8. 5E 8BA-5E 1.0 (0.45) TC8115801 TC801601 7. 8. 0E 8BA-0E 1.0 (0.45) TC8115801 TC801601 7. 8. 40E 8BA-40E 1.0 (0.45) TC8115801 TC801601 7. 8. 50E 8BA-50E 1.0 (0.45) TC8115801 TC801601 7. 8. 65E 8BA-65E 1.0 (0.45) TC8115801 TC801601 7. 8. 80E 8BA-80E 1.0 (0.45) TC8115801 TC801601 7. 8. 100E 8BA-100E 1.0 (0.45) TC8115801 TC801601 7. 8. 15E 8BA-15E 1.0 (0.45) TC8115801 TC801601 7. 8. 150E 8BA-150E 1.0 (0.45) TC8115801 TC801601 7. 8. 00E 8BA-00E 1.0 (0.45) TC8115801 TC801601 14.4 15.5 0.5 15BA-.5 1. (0.55) TC8115801 TC801601 14.4 15.5 5E 15BA-5E 1. (0.55) TC8115801 TC801601 14.4 15.5 7E 15BA-7E 1. (0.55) TC8115801 TC801601 14.4 15.5 10E 15BA-10E 1. (0.55) TC8115801 TC801601 14.4 15.5 15E 15BA-15E 1. (0.55) TC8115801 TC801601 14.4 15.5 0E 15BA-0E 1. (0.55) TC8115801 TC801601 14.4 15.5 5E 15BA-5E 1. (0.55) TC8115801 TC801601 14.4 15.5 0E 15BA-0E 1. (0.55) TC8115801 TC801601 14.4 15.5 40E 15BA-40E 1. (0.55) TC8115801 TC801601 14.4 15.5 50E 15BA-50E 1. (0.55) TC8115801 TC801601 14.4 15.5 65E 15BA-65E 1. (0.55) TC8115801 TC801601 14.4 15.5 80E 15BA-80E 1. (0.55) TC8115801 TC801601 14.4 15.5 100E 15BA-100E 1. (0.55) TC8115801 TC801601 14.4 15.5 15E 15BA-15E 1. (0.55) TC8115801 TC801601 14.4 15.5 150E 15BA-150E 1. (0.55) TC8115801 TC801601 14.4 15.5 00E 15BA-00E 1. (0.55) TC8115801 TC801601 V14-T- Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses BA Type Fuses.4 BA Type Expulsion Fuse Refill Units, continued Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 5.5 0.5 5BA-.5 1.5 (0.7) TC8115801 TC801601 5.5 5E 5BA-5E 1.5 (0.7) TC8115801 TC801601 5.5 7E 5BA-7E 1.5 (0.7) TC8115801 TC801601 5.5 10E 5BA-10E 1.5 (0.7) TC8115801 TC801601 5.5 15E 5BA-15E 1.5 (0.7) TC8115801 TC801601 5.5 0E 5BA-0E 1.5 (0.7) TC8115801 TC801601 5.5 5E 5BA-5E 1.5 (0.7) TC8115801 TC801601 5.5 0E 5BA-0E 1.5 (0.7) TC8115801 TC801601 5.5 40E 5BA-40E 1.5 (0.7) TC8115801 TC801601 5.5 50E 5BA-50E 1.5 (0.7) TC8115801 TC801601 5.5 65E 5BA-65E 1.5 (0.7) TC8115801 TC801601 5.5 80E 5BA-80E 1.5 (0.7) TC8115801 TC801601 5.5 100E 5BA-100E 1.5 (0.7) TC8115801 TC801601 5.5 15E 5BA-15E 1.5 (0.7) TC8115801 TC801601 5.5 150E 5BA-150E 1.5 (0.7) TC8115801 TC801601 5.5 00E 5BA-00E 1.5 (0.7) TC8115801 TC801601 4.5 8 0.5 8BA-.5 1.8 (0.8) TC8115801 TC801601 4.5 8 5E 8BA-5E 1.8 (0.8) TC8115801 TC801601 4.5 8 7E 8BA-7E 1.8 (0.8) TC8115801 TC801601 4.5 8 10E 8BA-10E 1.8 (0.8) TC8115801 TC801601 4.5 8 15E 8BA-15E 1.8 (0.8) TC8115801 TC801601 4.5 8 0E 8BA-0E 1.8 (0.8) TC8115801 TC801601 4.5 8 5E 8BA-5E 1.8 (0.8) TC8115801 TC801601 4.5 8 0E 8BA-0E 1.8 (0.8) TC8115801 TC801601 4.5 8 40E 8BA-40E 1.8 (0.8) TC8115801 TC801601 4.5 8 50E 8BA-50E 1.8 (0.8) TC8115801 TC801601 4.5 8 65E 8BA-65E 1.8 (0.8) TC8115801 TC801601 4.5 8 80E 8BA-80E 1.8 (0.8) TC8115801 TC801601 4.5 8 100E 8BA-100E 1.8 (0.8) TC8115801 TC801601 4.5 8 15E 8BA-15E 1.8 (0.8) TC8115801 TC801601 4.5 8 150E 8BA-150E 1.8 (0.8) TC8115801 TC801601 4.5 8 00E 8BA-00E 1.8 (0.8) TC8115801 TC801601 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-
.4 Expulsion Fuses BA Type Fuses BA4 Type Expulsion Fuse Refill Units Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 7. 8. 0.5 8BA4-.5 (0.9) TC80101 TC801401 7. 8. 5E 8BA4-5E (0.9) TC80101 TC801401 7. 8. 7E 8BA4-7E (0.9) TC80101 TC801401 7. 8. 10E 8BA4-10E (0.9) TC80101 TC801401 7. 8. 15E 8BA4-15E (0.9) TC80101 TC801401 7. 8. 0E 8BA4-0E (0.9) TC80101 TC801401 7. 8. 5E 8BA4-5E (0.9) TC80101 TC801401 7. 8. 0E 8BA4-0E (0.9) TC80101 TC801401 7. 8. 40E 8BA4-40E (0.9) TC80101 TC801401 7. 8. 50E 8BA4-50E (0.9) TC80101 TC801401 7. 8. 65E 8BA4-65E (0.9) TC80101 TC801401 7. 8. 80E 8BA4-80E (0.9) TC80101 TC801401 7. 8. 100E 8BA4-100E (0.9) TC80101 TC801401 7. 8. 15E 8BA4-15E (0.9) TC80101 TC801401 7. 8. 150E 8BA4-150E (0.9) TC80101 TC801401 7. 8. 00E 8BA4-00E (0.9) TC80101 TC801401 7. 8. 50E 8BA4-50E (0.9) TC80101 TC801401 7. 8. 00E 8BA4-00E (0.9) TC80101 TC801401 7. 8. 400E 8BA4-400E (0.9) TC80101 TC801401 14.4 15.5 0.5 15BA4-.5.5 (1.15) TC80101 TC801401 14.4 15.5 5E 15BA4-5E.5 (1.15) TC80101 TC801401 14.4 15.5 7E 15BA4-7E.5 (1.15) TC80101 TC801401 14.4 15.5 10E 15BA4-10E.5 (1.15) TC80101 TC801401 14.4 15.5 15E 15BA4-15E.5 (1.15) TC80101 TC801401 14.4 15.5 0E 15BA4-0E.5 (1.15) TC80101 TC801401 14.4 15.5 5E 15BA4-5E.5 (1.15) TC80101 TC801401 14.4 15.5 0E 15BA4-0E.5 (1.15) TC80101 TC801401 14.4 15.5 40E 15BA4-40E.5 (1.15) TC80101 TC801401 14.4 15.5 50E 15BA4-50E.5 (1.15) TC80101 TC801401 14.4 15.5 65E 15BA4-65E.5 (1.15) TC80101 TC801401 14.4 15.5 80E 15BA4-80E.5 (1.15) TC80101 TC801401 14.4 15.5 100E 15BA4-100E.5 (1.15) TC80101 TC801401 14.4 15.5 15E 15BA4-15E.5 (1.15) TC80101 TC801401 14.4 15.5 150E 15BA4-150E.5 (1.15) TC80101 TC801401 14.4 15.5 00E 15BA4-00E.5 (1.15) TC80101 TC801401 14.4 15.5 50E 15BA4-50E.5 (1.15) TC80101 TC801401 14.4 15.5 00E 15BA4-00E.5 (1.15) TC80101 TC801401 14.4 15.5 400E 15BA4-400E.5 (1.15) TC80101 TC801401 V14-T-4 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses BA Type Fuses.4 BA4 Type Expulsion Fuse Refill Units, continued Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 5.5 0.5 5BA4-.5.5 (1.6) TC80101 TC801401 5.5 5E 5BA4-5E.5 (1.6) TC80101 TC801401 5.5 7E 5BA4-7E.5 (1.6) TC80101 TC801401 5.5 10E 5BA4-10E.5 (1.6) TC80101 TC801401 5.5 15E 5BA4-15E.5 (1.6) TC80101 TC801401 5.5 0E 5BA4-0E.5 (1.6) TC80101 TC801401 5.5 5E 5BA4-5E.5 (1.6) TC80101 TC801401 5.5 0E 5BA4-0E.5 (1.6) TC80101 TC801401 5.5 40E 5BA4-40E.5 (1.6) TC80101 TC801401 5.5 50E 5BA4-50E.5 (1.6) TC80101 TC801401 5.5 65E 5BA4-65E.5 (1.6) TC80101 TC801401 5.5 80E 5BA4-80E.5 (1.6) TC80101 TC801401 5.5 100E 5BA4-100E.5 (1.6) TC80101 TC801401 5.5 15E 5BA4-15E.5 (1.6) TC80101 TC801401 5.5 150E 5BA4-150E.5 (1.6) TC80101 TC801401 5.5 00E 5BA4-00E.5 (1.6) TC80101 TC801401 5.5 50E 5BA4-50E.5 (1.6) TC80101 TC801401 5.5 00E 5BA4-00E.5 (1.6) TC80101 TC801401 4.5 8 0.5 8BA4-.5 4 (1.8) TC80101 TC801401 4.5 8 5E 8BA4-5E 4 (1.8) TC80101 TC801401 4.5 8 7E 8BA4-7E 4 (1.8) TC80101 TC801401 4.5 8 10E 8BA4-10E 4 (1.8) TC80101 TC801401 4.5 8 15E 8BA4-15E 4 (1.8) TC80101 TC801401 4.5 8 0E 8BA4-0E 4 (1.8) TC80101 TC801401 4.5 8 5E 8BA4-5E 4 (1.8) TC80101 TC801401 4.5 8 0E 8BA4-0E 4 (1.8) TC80101 TC801401 4.5 8 40E 8BA4-40E 4 (1.8) TC80101 TC801401 4.5 8 50E 8BA4-50E 4 (1.8) TC80101 TC801401 4.5 8 65E 8BA4-65E 4 (1.8) TC80101 TC801401 4.5 8 80E 8BA4-80E 4 (1.8) TC80101 TC801401 4.5 8 100E 8BA4-100E 4 (1.8) TC80101 TC801401 4.5 8 15E 8BA4-15E 4 (1.8) TC80101 TC801401 4.5 8 150E 8BA4-150E 4 (1.8) TC80101 TC801401 4.5 8 00E 8BA4-00E 4 (1.8) TC80101 TC801401 4.5 8 50E 8BA4-50E 4 (1.8) TC80101 TC801401 4.5 8 00E 8BA4-00E 4 (1.8) TC80101 TC801401 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-5
.4 Expulsion Fuses BA Type Fuses BA Type Expulsion Fuse Fuse Holders and Exhaust Control Devices Exhaust Control Device Voltage (kv) Non-Disconnect Fuse Holder Filter Condenser Nominal Maximum Ampere 7. 8. 0.5 00E 8BA-NH RBA-FLTR RBA-COND 14.4 15.5 0.5 00E 15BA-NH RBA-FLTR RBA-COND 5.5 0.5 00E RBA-FLTR RBA-COND 4.5 8 0.5 00E RBA-FLTR RBA-COND BA4 Type Expulsion Fuse Fuse Holders and Exhaust Control Devices Exhaust Control Device Voltage (kv) Non-Disconnect Fuse Holder Filter Condenser Nominal Maximum Ampere 7. 8. 0.5 400E 8BA4-NH RBA4-FLTR RBA4-COND 14.4 15.5 0.5 400E 15BA4-NH RBA4-FLTR RBA4-COND 5.5 0.5 00E RBA4-FLTR RBA4-COND 4.5 8 0.5 00E RBA4-FLTR RBA4-COND Notes Available as replacements in exiting installations. For new installations, use RBA fuse assemblies. Mounting no longer available. If mounting is required, convert installation to RBA fuse assemblies. V14-T-6 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBA Type Fuses.5 DBA Fuse Contents Description DBA Type Fuses........................... Selection................. Interrupting s...................... Product Selection....................... Page V14-T-7 V14-T- V14-T- V14-T- DBA Type Fuses Product Description The DBA type (dropout, boric acid) high voltage expulsion fuse is an E-rated, vented device designed for power applications. Introduction The DBA power fuse provides double protection for circuits and equipment that operate on voltages from 7. to 145 kv. The fuse has instant acting DE-ION circuit interruption and almost simultaneously, a mechanical dropout action gives a 180 air break. The fuse unit is of the replaceable type rather than the renewable type, resulting in light weight for ease in handling. Construction DE-ION arc interruption permits application of the DBA type power fuse over a wide range of system voltages. This line of dropout fuses carries the boric acid principle of circuit protection to higher voltage ratings, and at the same time provides at lower cost short-circuit protection for systems of moderate capacity. Principle parts of the DBA fuse unit are shown in the cross section illustration on this page. Main operating parts are the fusible element, arcing rod, helical spring, and dry boric acid cylinder. To prevent warping under outdoor conditions, a heavy Micarta tube encloses the entire assembly. This Micarta tube also assures adequate strength to contain the force of the arc interruption. Within the fuse unit, the current path is maintained by tight electrical connections. From the top ferrule, the path is to the copper tube spring shunt; then to the arcing rod collar and the arcing rod, on through the fusible element that is bridged by the strain element, and into the bottom ferrule. The copper spring shunt and the arcing rod collar are firmly held together by the contact finger spring. When the fuse element is blown, the arcing rod is pulled upward drawing the arc into the boric acid cylinder. The spring shunt contact fingers close in on the rod to maintain the electrical path. Intense heat from the arc, as it strikes, decomposes the compressed boric acid powder. Decomposition of the dry boric acid forms water vapor and boric acid anhydride. The electrical interruption is caused by the steam de-ionizing the arc as it is drawn through the cylinder by action of the spring and rod. The arcing rod is prevented from falling back into the fuse until after interruption by a friction stop just inside the top ferrule. DBA Fuse Construction Retaining Ring Top Ferrule Micarta Tube Copper Tube Spacing Shunt Arcing Rod End Helical Spring Compressed Boric Acid Powder Arcing Rod Bottom Ferrule Strain Element Fusible Element Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-7
.5 Expulsion Fuses DBA Type Fuses Operation The DBA type fuse unit is of the replaceable type rather than the renewable type. When the fuse has blown and drop-out completed, the entire unit is removed with a switch stick. After replacement of the blown unit, it is closed back into place with the switch stick. In replacing the blown fuse, the end fittings are removed and clamped on a new fuse. End fittings consist of an operating eye at the top and hinge lifting eye at the bottom. The two fittings have different shapes and are keyed with different projections. Fittings are simple to remove or replace, and cannot be reversed since the keys insure quick, correct alignment. DE-ION circuit interruption by action of the boric acid fuse unit is followed simultaneously by a mechanical drop-out action. When closing the fuse unit with the switch stick, the ejector casting located under the sleet hood, compresses the ejector spring. Under fault conditions the fuse element melts, the helical spring pulls the arcing rod and arc through the cylinder. The upper end of the arcing rod drives through a small hole in the top of the ferrule of the fuse unit and strikes the trigger-releasing ejector. The trigger operates and causes the ejector spring to force the ejector casting against the fuse assembly forcing it outward to swing through a 180 arc into a dropout position. Drop-out action provides immediate visual indication that the particular circuit in which the fuse is connected has been interrupted. The additional drop-out break insulates the fault from the feeders with an air gap of at least one foot on lower voltage system and up to six feet on higher voltage systems. This air break eliminates any possibility of carbonized fuse parts breaking down to allow leakage or another fault. Since drop-out action takes place after current interruption within the boric acid cylinder, burning or arcing at the contact surfaces is eliminated. Application The DBA fuse is applicable in utility and industrial high voltage power systems for protecting: Power transformers Feeder circuit sectionalizing Distribution transformers Potential transformers s 8. to 145 kv 0.5E to 00E Amperes The power fuse is an inherently fast circuit-interrupting device. This must be taken into account when determining the required short-circuit interrupting rating of a fuse. The boric acid power fuse will interrupt currents of shortcircuit magnitude in approximately 1/ cycle measured from the instant of short-circuit. During this 1/ cycle, the short-circuit current may be much higher than the sustained rms short-circuit current of the system at that point. The fuse must be capable of safely interrupting this transient current that might exist at the instant the fuse operates. In an alternating current circuit containing inductance, a sudden change in the AC current is accompanied by a transient DC component that is a function of the AC current before and after the change and the point on the cycle at that the change occurs. The decrement of the transient is a function of the inductance and resistance or losses of the circuit. If a short is suddenly established on a circuit, the DC component can have a maximum peak value equal to the crest of the 60 cycle shortcircuit current of the system. This maximum transient is obtained if the fault occurs at voltage zero. Due to the system losses, this DC component will die out to a low value in a few cycles. However, a fuse normally interrupts a shortcircuit in 1/ cycle, and this DC component of current must be taken into consideration in rating the fuse. If the decrement of DC component in this half cycle is neglected, the rms value of current for the totally asymmetrical condition would be 1.7 times the rms symmetrical value of the 60 cycle component. Experience has shown that there is some decrement in this first half cycle and also that the current is limited somewhat by the arc drop in the fuse. For this reason, a ratio of 1.6 has been selected between the rms asymmetrical current the fuse must be designed to interrupt, and the rms short-circuit of the system on which the fuse is to be used. This instantaneous rms asymmetrical value of short-circuit current, which the fuse must be designed to interrupt, is often referred to as the rms symmetrical value including the DC component. The asymmetrical value is obtained by multiplying the symmetrical value by 1.6. The symmetrical value of shortcircuit current on a three-phase system is determined by dividing the available threephase, short-circuit kva by the product of the system voltage and 1/. V14-T-8 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBA Type Fuses.5 Instructions for DBA Type Fuse Units 8. kv to 145 kv Installation of Replacement Fuses DBA fuse units are available in two classifications, DBA-1 and DBA- and are used for utilitytype applications from 8. kv through 145 kv. Remove fuses from all three phases and replace with new or tested units. Fuses having been involved in a fault but not blown should be tested by resistance measurements to ascertain that they are suitable for continued service. Resistance limits are available on request. Prior to installation, it is advisable to check the functioning of the mounting as follows: 1. Remove fuse fittings from hinge casting (see the figures on Pages V14-T-0 and V14-T-1) and mount on a suitable fuse unit as shown in the figure on this page.. Check gauging distance S between center of guide pin in latch housing and bottom of socket in hinge casting as illustrated in the figures on Pages V14-T-0 and V14-T-1. Dimension S must measure the same on both sides of the mounting. If dimension S is found to be incorrect, adjust it by using the clearances provided in the bolt holes (see the figures on Pages V14-T-0 and V14-T-1).. Put the suitable fuse unit equipped with fittings in the mounting. Check operation of latch assembly by closing and opening the fuse as shown in the figures on Pages V14-T-0 and V14-T-1). DBA-1 fuses up to 69 kv as well as DBA- fuses up to 46 kv can be lifted into the hinge casting by means of conventional all-purpose switch sticks. For lifting heavier fuses into the hinge, a switch stick about one foot shorter than the distance from ground level to the fuse hinge is recommended. This switch stick should be held approximately vertical as shown in the figures on Pages V14-T-0 and V14-T-1. For the closing-in or disconnecting operation, a switch stick of at least four foot greater length should be employed. Insert the switch stick pin into the eye of the fuse fitting from the right-hand side and have it form an angle of at least 5 with the fuse. Fuse should be closed in with a sharp thrust. A similar impactlike pull is required to open the fuse. After the latch contacts have parted, the fuse may be allowed to disengage itself from the switch stick and drop out in a normal manner. Maintenance General maintenance instructions are published in the IEEE Std. C-7.48-197. Inspection of the fuse mounting should include checking the gauge distance S (see the figures on Pages V14-T-0 and V14-T-1) and the operation of the latch mechanism. Fuse Unit With Fittings Clamp Ring Locating Pin Nameplate Locating Pin Lower Eye Casting Fuse Unit Upper Eye Casting Dimensions in Inches (mm) kv DBA-1 DBA- 8. 1.5 (4.9) 15.5 17.0 (41.8) 5.5 1.5 (546.1) 8 8.5 (7.9) 8.1 (714.5) 48. 4.0 (86.6).6 (854.) 69 4.88 (1,114.6) 4.6 (1,108.) 9 5.0 (1,0.8) 11 6.0 (1,574.8) 145 7.0 (1,88.8) A (See table below) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-9
.5 Expulsion Fuses DBA Type Fuses Insulator Spacing Approximate Dimensions in Inches (mm) kv Dimension C Dimension S Dimension C Dimension S DBA-1 DBA- 7. 1.6 (46.) 15.5 (87.4) 15 17.1 (45.1) 18.75 (476.) 1.6 (549.4).5 (590.6) 4.5 8.6 (77.) 0.5 (768.4) 7.88 (708.) 46 4.1 (866.9) 5.75 (908.1).8 (847.9) 69 44.00 (1117.6) 45.6 (1159.0) 4.8 (1101.9) 9 51.75 (114.5) 115 61.75 (1568.5) 18 71.75 (18.5) Hinge Assembly DBA-1 8. to 69 kv 7. to 46 kv 69 kv 9 to 18 kv DBA- 8 to 7.5 kv DBA- 9 to 145 kv V14-T-0 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBA Type Fuses.5 Spacer Adjustment Procedure 1. Loosen all four through bolts.. Turn adjusting nut the desired amount.. Retighten all four through bolts. Switch Stick Operation Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-1
.5 Expulsion Fuses DBA Type Fuses Selection DBA Fuse Units Interrupting s DBA Fuse Interrupting s Fuse Unit Maximum Voltage kv Maximum System Voltage kv Maximum kv 8 = 8. kv 15 = 15.5 kv 5 = 5.5 kv 8 = 8 kv 48 = 48 kv 7 = 7 kv 9 = 9 kv 11 = 11 kv 145 = 145 kv DBA-1 rms Symmetrical ka 8..75 6. 5.5 6. 8. 6. 15.5 15.5 6. 5.8 5.8 6. 1.5 8 8 5.0 1.5 48 48 4.0 1.5 7 7 10.0 9 9 6. 11 11 5.0 145 145 4.0 DBA- rms Symmetrical ka 15 DBA 100E Type DBA1 DBA 0.5 5E 7E 10E 15E 0E 5E 0E Ampere 40E 50E 65E 80E 100E 15E 150E 00E V14-T- Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBA Type Fuses.5 Product Selection DBA-1 Type Expulsion Fuse Units Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 7. 8. 0.5 8DBA1-0.5 1.5 (0.7) TC4595101 TC459501 7. 8. 8DBA1-1.5 (0.7) TC4595101 TC459501 7. 8. 5E 8DBA1-5E 1.5 (0.7) TC4595101 TC459501 7. 8. 7E 8DBA1-7E 1.5 (0.7) TC4595101 TC459501 7. 8. 10E 8DBA1-10E 1.5 (0.7) TC4595101 TC459501 7. 8. 15E 8DBA1-15E 1.5 (0.7) TC4595101 TC459501 7. 8. 0E 8DBA1-0E 1.5 (0.7) TC4595101 TC459501 7. 8. 5E 8DBA1-5E 1.5 (0.7) TC4595101 TC459501 7. 8. 0E 8DBA1-0E 1.5 (0.7) TC4595101 TC459501 7. 8. 40E 8DBA1-40E 1.5 (0.7) TC4595101 TC459501 7. 8. 50E 8DBA1-50E 1.5 (0.7) TC4595101 TC459501 7. 8. 65E 8DBA1-65E 1.5 (0.7) TC4595101 TC459501 7. 8. 80E 8DBA1-80E 1.5 (0.7) TC4595101 TC459501 7. 8. 100E 8DBA1-100E 1.5 (0.7) TC4595101 TC459501 7. 8. 15E 8DBA1-15E 1.5 (0.7) TC4595101 TC459501 7. 8. 150E 8DBA1-150E 1.5 (0.7) TC4595101 TC459501 7. 8. 00E 8DBA1-00E 1.5 (0.7) TC4595101 TC459501 14.4 15.5 0.5 15DBA1-0.5.1 (1.0) TC4595101 TC459501 14.4 15.5 15DBA1-.1 (1.0) TC4595101 TC459501 14.4 15.5 5E 15DBA1-5E.1 (1.0) TC4595101 TC459501 14.4 15.5 7E 15DBA1-7E.1 (1.0) TC4595101 TC459501 14.4 15.5 10E 15DBA1-10E.1 (1.0) TC4595101 TC459501 14.4 15.5 15E 15DBA1-15E.1 (1.0) TC4595101 TC459501 14.4 15.5 0E 15DBA1-0E.1 (1.0) TC4595101 TC459501 14.4 15.5 5E 15DBA1-5E.1 (1.0) TC4595101 TC459501 14.4 15.5 0E 15DBA1-0E.1 (1.0) TC4595101 TC459501 14.4 15.5 40E 15DBA1-40E.1 (1.0) TC4595101 TC459501 14.4 15.5 50E 15DBA1-50E.1 (1.0) TC4595101 TC459501 14.4 15.5 65E 15DBA1-65E.1 (1.0) TC4595101 TC459501 14.4 15.5 80E 15DBA1-80E.1 (1.0) TC4595101 TC459501 14.4 15.5 100E 15DBA1-100E.1 (1.0) TC4595101 TC459501 14.4 15.5 15E 15DBA1-15E.1 (1.0) TC4595101 TC459501 14.4 15.5 150E 15DBA1-150E.1 (1.0) TC4595101 TC459501 14.4 15.5 00E 15DBA1-00E.1 (1.0) TC4595101 TC459501 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-
.5 Expulsion Fuses DBA Type Fuses DBA-1 Type Expulsion Fuse Units, continued Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 5.5 0.5 5DBA1-0.5.1 (1.4) TC4595101 TC459501 5.5 5DBA1-.1 (1.4) TC4595101 TC459501 5.5 5E 5DBA1-5E.1 (1.4) TC4595101 TC459501 5.5 7E 5DBA1-7E.1 (1.4) TC4595101 TC459501 5.5 10E 5DBA1-10E.1 (1.4) TC4595101 TC459501 5.5 15E 5DBA1-15E.1 (1.4) TC4595101 TC459501 5.5 0E 5DBA1-0E.1 (1.4) TC4595101 TC459501 5.5 5E 5DBA1-5E.1 (1.4) TC4595101 TC459501 5.5 0E 5DBA1-0E.1 (1.4) TC4595101 TC459501 5.5 40E 5DBA1-40E.1 (1.4) TC4595101 TC459501 5.5 50E 5DBA1-50E.1 (1.4) TC4595101 TC459501 5.5 65E 5DBA1-65E.1 (1.4) TC4595101 TC459501 5.5 80E 5DBA1-80E.1 (1.4) TC4595101 TC459501 5.5 100E 5DBA1-100E.1 (1.4) TC4595101 TC459501 5.5 15E 5DBA1-15E.1 (1.4) TC4595101 TC459501 5.5 150E 5DBA1-150E.1 (1.4) TC4595101 TC459501 5.5 00E 5DBA1-00E.1 (1.4) TC4595101 TC459501 4.5 8 0.5 8DBA1-0.5 4. (1.9) TC4595101 TC459501 4.5 8 8DBA1-4. (1.9) TC4595101 TC459501 4.5 8 5E 8DBA1-5E 4. (1.9) TC4595101 TC459501 4.5 8 7E 8DBA1-7E 4. (1.9) TC4595101 TC459501 4.5 8 10E 8DBA1-10E 4. (1.9) TC4595101 TC459501 4.5 8 15E 8DBA1-15E 4. (1.9) TC4595101 TC459501 4.5 8 0E 8DBA1-0E 4. (1.9) TC4595101 TC459501 4.5 8 5E 8DBA1-5E 4. (1.9) TC4595101 TC459501 4.5 8 0E 8DBA1-0E 4. (1.9) TC4595101 TC459501 4.5 8 40E 8DBA1-40E 4. (1.9) TC4595101 TC459501 4.5 8 50E 8DBA1-50E 4. (1.9) TC4595101 TC459501 4.5 8 65E 8DBA1-65E 4. (1.9) TC4595101 TC459501 4.5 8 80E 8DBA1-80E 4. (1.9) TC4595101 TC459501 4.5 8 100E 8DBA1-100E 4. (1.9) TC4595101 TC459501 4.5 8 15E 8DBA1-15E 4. (1.9) TC4595101 TC459501 4.5 8 150E 8DBA1-150E 4. (1.9) TC4595101 TC459501 4.5 8 00E 8DBA1-00E 4. (1.9) TC4595101 TC459501 V14-T-4 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBA Type Fuses.5 DBA-1 Type Expulsion Fuse Units, continued Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 46 48 0.5 48DBA1-0.5 6.5 (.0) TC4595101 TC459501 46 48 48DBA1-6.5 (.0) TC4595101 TC459501 46 48 5E 48DBA1-5E 6.5 (.0) TC4595101 TC459501 46 48 7E 48DBA1-7E 6.5 (.0) TC4595101 TC459501 46 48 10E 48DBA1-10E 6.5 (.0) TC4595101 TC459501 46 48 15E 48DBA1-15E 6.5 (.0) TC4595101 TC459501 46 48 0E 48DBA1-0E 6.5 (.0) TC4595101 TC459501 46 48 5E 48DBA1-5E 6.5 (.0) TC4595101 TC459501 46 48 0E 48DBA1-0E 6.5 (.0) TC4595101 TC459501 46 48 40E 48DBA1-40E 6.5 (.0) TC4595101 TC459501 46 48 50E 48DBA1-50E 6.5 (.0) TC4595101 TC459501 46 48 65E 48DBA1-65E 6.5 (.0) TC4595101 TC459501 46 48 80E 48DBA1-80E 6.5 (.0) TC4595101 TC459501 46 48 100E 48DBA1-100E 6.5 (.0) TC4595101 TC459501 46 48 15E 48DBA1-15E 6.5 (.0) TC4595101 TC459501 46 48 150E 48DBA1-150E 6.5 (.0) TC4595101 TC459501 46 48 00E 48DBA1-00E 6.5 (.0) TC4595101 TC459501 69 7 0.5 7DBA1-0.5 7.1 (.5) TC4595101 TC459501 69 7 7DBA1-7.1 (.5) TC4595101 TC459501 69 7 5E 7DBA1-5E 7.1 (.5) TC4595101 TC459501 69 7 7E 7DBA1-7E 7.1 (.5) TC4595101 TC459501 69 7 10E 7DBA1-10E 7.1 (.5) TC4595101 TC459501 69 7 15E 7DBA1-15E 7.1 (.5) TC4595101 TC459501 69 7 0E 7DBA1-0E 7.1 (.5) TC4595101 TC459501 69 7 5E 7DBA1-5E 7.1 (.5) TC4595101 TC459501 69 7 0E 7DBA1-0E 7.1 (.5) TC4595101 TC459501 69 7 40E 7DBA1-40E 7.1 (.5) TC4595101 TC459501 69 7 50E 7DBA1-50E 7.1 (.5) TC4595101 TC459501 69 7 65E 7DBA1-65E 7.1 (.5) TC4595101 TC459501 69 7 80E 7DBA1-80E 7.1 (.5) TC4595101 TC459501 69 7 100E 7DBA1-100E 7.1 (.5) TC4595101 TC459501 69 7 15E 7DBA1-15E 7.1 (.5) TC4595101 TC459501 69 7 150E 7DBA1-150E 7.1 (.5) TC4595101 TC459501 69 7 00E 7DBA1-00E 7.1 (.5) TC4595101 TC459501 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-5
.5 Expulsion Fuses DBA Type Fuses DBA- Type Expulsion Fuse Units Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 4.5 8 0.5 8DBA-.5 10 (4.6) TC4595101 TC459501 4.5 8 8DBA- 10 (4.6) TC4595101 TC459501 4.5 8 5E 8DBA-5E 10 (4.6) TC4595101 TC459501 4.5 8 7E 8DBA-7E 10 (4.6) TC4595101 TC459501 4.5 8 10E 8DBA-10E 10 (4.6) TC4595101 TC459501 4.5 8 15E 8DBA-15E 10 (4.6) TC4595101 TC459501 4.5 8 0E 8DBA-0E 10 (4.6) TC4595101 TC459501 4.5 8 5E 8DBA-5E 10 (4.6) TC4595101 TC459501 4.5 8 0E 8DBA-0E 10 (4.6) TC4595101 TC459501 4.5 8 40E 8DBA-40E 10 (4.6) TC4595101 TC459501 4.5 8 50E 8DBA-50E 10 (4.6) TC4595101 TC459501 4.5 8 65E 8DBA-65E 10 (4.6) TC4595101 TC459501 4.5 8 80E 8DBA-780E 10 (4.6) TC4595101 TC459501 4.5 8 100E 8DBA-100E 10 (4.6) TC4595101 TC459501 4.5 8 15E 8DBA-15E 10 (4.6) TC4595101 TC459501 4.5 8 150E 8DBA-150E 10 (4.6) TC4595101 TC459501 4.5 8 00E 8DBA-00E 10 (4.6) TC4595101 TC459501 46 48 0.5 48DBA-.5 1 (5.5) TC4595101 TC459501 46 48 48DBA- 1 (5.5) TC4595101 TC459501 46 48 5E 48DBA-5E 1 (5.5) TC4595101 TC459501 46 48 7E 48DBA-7E 1 (5.5) TC4595101 TC459501 46 48 10E 48DBA-10E 1 (5.5) TC4595101 TC459501 46 48 15E 48DBA-15E 1 (5.5) TC4595101 TC459501 46 48 0E 48DBA-0E 1 (5.5) TC4595101 TC459501 46 48 5E 48DBA-5E 1 (5.5) TC4595101 TC459501 46 48 0E 48DBA-0E 1 (5.5) TC4595101 TC459501 46 48 40E 48DBA-40E 1 (5.5) TC4595101 TC459501 46 48 50E 48DBA-50E 1 (5.5) TC4595101 TC459501 46 48 65E 48DBA-65E 1 (5.5) TC4595101 TC459501 46 48 80E 48DBA-780E 1 (5.5) TC4595101 TC459501 46 48 100E 48DBA-100E 1 (5.5) TC4595101 TC459501 46 48 15E 48DBA-15E 1 (5.5) TC4595101 TC459501 46 48 150E 48DBA-150E 1 (5.5) TC4595101 TC459501 46 48 00E 48DBA-00E 1 (5.5) TC4595101 TC459501 V14-T-6 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBA Type Fuses.5 DBA- Type Expulsion Fuse Units, continued Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 69 7 0.5 7DBA-.5 15 (6.8) TC4595101 TC459501 69 7 7DBA- 15 (6.8) TC4595101 TC459501 69 7 5E 7DBA-5E 15 (6.8) TC4595101 TC459501 69 7 7E 7DBA-7E 15 (6.8) TC4595101 TC459501 69 7 10E 7DBA-10E 15 (6.8) TC4595101 TC459501 69 7 15E 7DBA-15E 15 (6.8) TC4595101 TC459501 69 7 0E 7DBA-0E 15 (6.8) TC4595101 TC459501 69 7 5E 7DBA-5E 15 (6.8) TC4595101 TC459501 69 7 0E 7DBA-0E 15 (6.8) TC4595101 TC459501 69 7 40E 7DBA-40E 15 (6.8) TC4595101 TC459501 69 7 50E 7DBA-50E 15 (6.8) TC4595101 TC459501 69 7 65E 7DBA-65E 15 (6.8) TC4595101 TC459501 69 7 80E 7DBA-780E 15 (6.8) TC4595101 TC459501 69 7 100E 7DBA-100E 15 (6.8) TC4595101 TC459501 69 7 15E 7DBA-15E 15 (6.8) TC4595101 TC459501 69 7 150E 7DBA-150E 15 (6.8) TC4595101 TC459501 69 7 00E 7DBA-00E 15 (6.8) TC4595101 TC459501 9 9 9DBA- 19 (8.7) TC4595101 TC4595401 9 9 5E 9DBA-5E 19 (8.7) TC4595101 TC4595401 9 9 7E 9DBA-7E 19 (8.7) TC4595101 TC4595401 9 9 10E 9DBA-10E 19 (8.7) TC4595101 TC4595401 9 9 15E 9DBA-15E 19 (8.7) TC4595101 TC4595401 9 9 0E 9DBA-0E 19 (8.7) TC4595101 TC4595401 9 9 5E 9DBA-5E 19 (8.7) TC4595101 TC4595401 9 9 0E 9DBA-0E 19 (8.7) TC4595101 TC4595401 9 9 40E 9DBA-40E 19 (8.7) TC4595101 TC4595401 9 9 50E 9DBA-50E 19 (8.7) TC4595101 TC4595401 9 9 65E 9DBA-65E 19 (8.7) TC4595101 TC4595401 9 9 80E 9DBA-780E 19 (8.7) TC4595101 TC4595401 9 9 100E 9DBA-100E 19 (8.7) TC4595101 TC4595401 9 9 15E 9DBA-15E 19 (8.7) TC4595101 TC4595401 9 9 150E 9DBA-150E 19 (8.7) TC4595101 TC4595401 9 9 00E 9DBA-00E 19 (8.7) TC4595101 TC4595401 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-7
.5 Expulsion Fuses DBA Type Fuses DBA- Type Expulsion Fuse Units, continued Voltage (kv) Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 115 11 11DBA- (10) TC4595101 TC4595401 115 11 5E 11DBA-5E (10) TC4595101 TC4595401 115 11 7E 11DBA-7E (10) TC4595101 TC4595401 115 11 10E 11DBA-10E (10) TC4595101 TC4595401 115 11 15E 11DBA-15E (10) TC4595101 TC4595401 115 11 0E 11DBA-0E (10) TC4595101 TC4595401 115 11 5E 11DBA-5E (10) TC4595101 TC4595401 115 11 0E 11DBA-0E (10) TC4595101 TC4595401 115 11 40E 11DBA-40E (10) TC4595101 TC4595401 115 11 50E 11DBA-50E (10) TC4595101 TC4595401 115 11 65E 11DBA-65E (10) TC4595101 TC4595401 115 11 80E 11DBA-780E (10) TC4595101 TC4595401 115 11 100E 11DBA-100E (10) TC4595101 TC4595401 115 11 15E 11DBA-15E (10) TC4595101 TC4595401 115 11 150E 11DBA-150E (10) TC4595101 TC4595401 115 11 00E 11DBA-00E (10) TC4595101 TC4595401 18 145 145DBA- 5 (11.4) TC4595101 TC4595401 18 145 5E 145DBA-5E 5 (11.4) TC4595101 TC4595401 18 145 7E 145DBA-7E 5 (11.4) TC4595101 TC4595401 18 145 10E 145DBA-10E 5 (11.4) TC4595101 TC4595401 18 145 15E 145DBA-15E 5 (11.4) TC4595101 TC4595401 18 145 0E 145DBA-0E 5 (11.4) TC4595101 TC4595401 18 145 5E 145DBA-5E 5 (11.4) TC4595101 TC4595401 18 145 0E 145DBA-0E 5 (11.4) TC4595101 TC4595401 18 145 40E 145DBA-40E 5 (11.4) TC4595101 TC4595401 18 145 50E 145DBA-50E 5 (11.4) TC4595101 TC4595401 18 145 65E 145DBA-65E 5 (11.4) TC4595101 TC4595401 18 145 80E 145DBA-780E 5 (11.4) TC4595101 TC4595401 18 145 100E 145DBA-100E 5 (11.4) TC4595101 TC4595401 18 145 15E 145DBA-15E 5 (11.4) TC4595101 TC4595401 18 145 150E 145DBA-150E 5 (11.4) TC4595101 TC4595401 18 145 00E 145DBA-00E 5 (11.4) TC4595101 TC4595401 V14-T-8 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBU Type Fuses.6 DBU Fuse Unit in Outdoor Mounting Contents Description DBU Type Fuses Applications............................ Interruption and Protection................ Testing and Performance.................. Installation............................. Selection................. Interrupting s...................... Product Selection....................... Dimensions............................ Page V14-T-40 V14-T-41 V14-T-4 V14-T-4 V14-T-44 V14-T-44 V14-T-45 V14-T-50 DBU Type Fuses Product Description Introduction Eaton s DBU (Distribution Boric acid fuse Unit) power and distribution fuses are expulsion-style fuse units designed for both indoor and outdoor applications. DBU fuse units provide a low initial cost alternative to refillable fuses. Conventional distribution cutouts use a fuse link in a fiber tube within the fuse holder for fault interruption. DBU fuses far exceed the cutout in interrupting rating, and considerably reduce the hazards and noise produced by the violent exhaust of cutouts under fault interrupting conditions. DBU fuses employ calibrated silver elements with a parallel strain links, boric acid interrupting media, and a spring and rod mechanism, all housed inside a sealed rigid enclosure. The design is optimized to give a low arc voltage and mild exhaust during fault interruption. DBU expulsion fuses are available in three voltage classes: 17 kv, 7 kv, and 8 kv, and in three speed variations: Standard E, Slow E, and K with amperage sizes ranging from A through 00A. Construction A DBU fuse comprises the fuse unit, end fittings (including a muffler when installed in an indoor mounting), and a mounting. Principle parts of the replaceable DBU fuse unit are illustrated in the cross section view of the figure on Page V14-T-40. The active parts of the fuse unit are the calibrated current responsive silver element with a parallel high strength strain wire, arcing rod, boric acid cylinder, and spring. To ensure adequate strength to contain the force of the arc interruption, the assembly is enclosed in a high strength glass-epoxy tube with plated copper end connections. The use of a calibrated pure silver element and Nichrome strain wire makes the DBU less prone to premature operation caused by vibration, corona corrosion, or aging of the fuse elements. It is not susceptible to damage by transient faults or overloads that may approach the minimum melt time-current curve point. Under normal load conditions, a positive low resistance sliding connection is maintained between the movable arcing rod and the fixed contact at the upper end of the fuse unit with a tulip contact. Durable weatherproof labels are attached to each fuse to provide rating and manufacturer information. Operation DBU expulsion fuses use the proven performance of boric acid to create the de-ionizing action needed to interrupt fault currents. Interruption is achieved by the action of the arcing rod and a charged compression spring that elongates the arc through a boric acid chamber when the arcing rod is released by the melting and arcing of the fuse element and strain wire. The high temperature of the arc separates the hydrated boric acid producing a blast of water vapor and inert boric anhydride. This expanding mixture extinguishes the arc by blasting through and deionizing it. At high levels of fault current, the exhaust caused by the interruption ruptures the vent disc and exits from the bottom of the fuse. At lower values of fault current, the interruption is confined within the fuse unit, and there is no exhaust from the fuse. The de-ionizing action prevents the arc from restriking after a current zero. DBU fuses are designed to interrupt short-circuit currents within 1/ cycle at the next current zero. The relative details of the boric acid cylinder and the arcing rod and element assemblies are tuned to limit any noise and hazard produced by a fuse operation at all levels of fault current. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-9
.6 Expulsion Fuses DBU Type Fuses DBU Sectioned View When the fuse operates, the spring forces the top of the arcing rod to penetrate the upper seal. On indoor applications, this action causes the visible blown fuse indicator to actuate. On outdoor installations, the latch releases the fuse unit allowing the ejector spring to move the assembly outward and swing into the vertical down dropout position. This dropout action provides immediate visual indication that the fuse has interrupted a fault. When a fuse has operated and the dropout action is complete, the fuse unit complete with end fittings can be removed with a switch stick. Refer to I.L.6-64-E for Installation Instructions. Applications DBU fuses provide effective protection for circuits and equipment that operate on systems with voltage ratings up to 4,500V. They can be used on both electric utility and industrial distribution systems and are suitable for use on the following: Power transformers Feeder circuits Distribution transformers Potential transformers Station service transformers Metal-enclosed switchgear Pad mount switches DBU fuse units are sealed and can be used in outdoor or indoor applications. They can be used to directly replace competitive equivalent units. DBU Fuse Unit A DBU fuse unit is comprised of a compression spring, an arcing rod, a calibrated DBU fuse units have reliable performance in compliance with industry-standard timecurrent characteristics which allow close coordination that other DBU fuses, as well as other fuses and a wide variety of other protective devices. DBU fuses operate promptly to limit the stress on electrical systems due to short-circuits. They isolate the faulted circuit, limiting service interruptions. They act rapidly to take transformers off-line, preventing tank rupture, and feeder circuits off-line before damage can become widespread. They also provide excellent isolation for capacitors, preventing case failure in the event of a fault condition. When installed on the primary side of substation power transformers, DBU fuses provide protection against small, medium or large faults. Regardless of the nature of the fault, full protection is provided even down to minimum melt current. DBU Details Eaton s DBU fuses provide superior performance and are applicable for distribution system protection up to an operational voltage of 4.5KV. Because DBU fuses are available in a range of current and speed ratings, close fusing can be achieved to maximize protection and overall coordination. The quality of the DBU design and manufacturing process ensures repeatable accuracy and ongoing timecurrent protection. current responsive silver element with a parallel mechanical strain wire that isolates the silver element from the spring tension, and a solid boric acid liner that assists with the interruption. All of these components are contained within a high strength glass-epoxy tube sealed with high conductivity copper end contacts that are compatible with industry standard end fittings for indoor or outdoor application. The calibrated fuse element determines the operational fault response characteristics of the fuse unit, which are indicated on the specific time-current characteristic curve. The heavy copper cylindrical arcing rod is contained within the boric acid liner and performs two functions. Under normal conditions, it conducts the continuous rated current of the fuse. When the fuse element and strain wire melt during a fault condition, the arcing rod draws and lengthens the arc as it moves up through the boric acid liner. This movement is caused by spring tension accelerating the arcing rod after release by the melted strain link. Intense heat from the arc separates the hydrated boric acid producing water vapor and inert boric anhydride that extinguishes and de-ionizes the arc. On low current interruptions, the vent diaphragm is not ruptured, and the pressure retained within the fuse unit helps to extinguish the low intensity arc. On high current interruptions, the vent diaphragm is ruptured and the exhaust exits from the bottom of the fuse. In either case, the resulting dielectric strength generated in the fuse unit prevents reignition of the arc after a current zero. DBU fuse units are discarded after fault interruption, and do not present any environmental hazard if discarded in a landfill. DBU End Fittings End fittings that are positioned on the top and bottom of the fuse unit and are required to complete the electrical connection between the fuse unit and mounting, can be reused if they remain undamaged. They are completely interchangeable with other comparable industry standard end fittings. Outdoor End Fittings Reusable outdoor end fittings are silver plated and made of a cast high conductivity copper alloy. The hookeye in the lower end fitting allows the fuse unit to be easily lifted in or out of the lower hinge contact of the mounting. A large hookeye on the upper fitting allows for easy operation in pole-top mountings with a switch stick. The design of the upper end fitting provides for proper engagement in the upper contact assembly of the mounting. The positive locking action of the latch mechanism prevents detachment from the mounting due to shock or vibration. The lower end fitting has two cylindrical posts that insert into the lower contact assembly of the mounting. These posts allow the fuse to rotate into the proper engaged position, and suspend the fuse in the operated, drop-out position. If a fault occurs, the arcing rod will pierce the seal at the upper end of the fuse unit, and cause the latch to release. Once released, the fuse will rotate down into the drop-out position to indicate that the fuse has operated. V14-T-40 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBU Type Fuses.6 Indoor End Fittings Reusable indoor end fittings are composed of high-impact plastic and high conductivity copper alloy. The visual indicator located on the top end fitting, provides clear indication of a fuse unit that has operated. The silverplated contact rod insures positive conductivity between the fuse unit and the upper contact assembly of the mounting. The spring-biased plastic latch hookeye actuates the latch mechanism when engaged into the mounting. It readily accepts a switch stick to insert or remove the assembled fuse unit. A locating pin in the upper end fitting assembly ensures proper alignment and engagement with the fuse unit. The cast bottom indoor end fitting has a locating slot on the inside bore that aligns with a locating pin on the lower section of the fuse unit to provide proper alignment with the mounting. The bottom indoor end fitting is attached to the fuse unit by threading a muffler into the end fitting, and so clamping the fitting to the fuse unit. Projections on the bottom of the muffler allow sufficient torque to be applied to seal the muffler to the fuse unit. The lower ferrule of the fuse unit directly contacts the lower contacts of the mounting. The muffler absorbs noise and contamination from arcing products to prevent contamination of indoor equipment. The muffler is constructed of a plated steel housing, containing copper mesh screening. This copper mesh acts to absorb and contain the noise, and de-ionize exhaust materials of the fuse during a fault interruption. De-ionizing the exhaust gases prevents accidental flashover from phase-to-phase or phase-toground by limiting foreign airborne particles and gases. Mountings and Live Parts Eaton offers a full line of outdoor mountings and indoor loadbreak and nonloadbreak mountings and live parts for the DBU fuse family. Mountings are available in 17 kv, 7 kv, and 8 kv class designs, and these mountings will readily accommodate DBU fuses and other equivalent industry standard fuses. DBU mountings have a rated maximum continuous current of 00A, with a rated maximum interrupting current up to 14 ka. The following lists the LIWV rated lightning impulse withstand voltage rating of each voltage class (BIL): 17 kv 95 kv 7 kv 15 kv 8 kv 150 kv Indoor loadbreak units have a maximum three-time fault close ASYM of,400a rms. Refer to the catalog number section for exact ratings per unit. Indoor mountings are constructed with rigid steel bases that are powder coated and baked. Bases are supplied with preformed mounting holes for easy installation. Insulators are molded of high strength epoxy material for superior insulating characteristics. Live parts are rigidly secured to the insulators with standard mounting hardware. Both left and right side cable terminations are available for indoor mountings for proper installation spacing. All bus connections are plated copper for improved conductivity and endurance. All loadbreak units have a three-time fault close rating. These fuse mountings can withstand a fuse assembly being closed into a fault of the magnitude specified three times when closed briskly without hesitation, and remain operable and able to carry and interrupt the continuous current. All live parts are constructed of silver-plated copper to ensure maximum and sustained conductivity. Live parts can be purchased as separate kits without mountings. Interruption and Protection DBU fuses provide effective protection for circuits and equipment operating on voltages from 400V through 4,500V. They are designed to carry their rated continuous current without exceeding the temperature rise limits specified in IEEE and ANSl standards. Under normal conditions, the temperature of the fusible element is well below the melting temperature and does not melt. Under overload conditions, when the current is above any allowable overload condition for an extended period of time, but below the minimum level of current indicated on the total clearing time-current curve, the element temperature is below the melting temperature, but the heat generated within the fuse unit may be sufficient to cause permanent degradation of the structure of the fuse unit, sufficient to interfere with the ability of the fuse unit to perform as designed. Under fault conditions, when a fault occurs that is large enough to melt the fuse element, an arc is initiated and elongated by the spring, pulling the arcing rod up into the boric acid interrupting media. The heat produced separates the material of the boric acid liner producing water vapor and boric anhydride that de-ionize the arc. At low fault current levels the pressure in the arcing chamber along with the elongation of the arc gives sufficient dielectric strength to extinguish the arc at a natural current zero without bursting the pressure diaphragm. At higher fault current levels, the byproducts extinguish the arc at a natural current zero by bursting the pressure diaphragm and forcing the arc products out of the bottom of the fuse unit. When installed indoors, the exhaust and noise produced during the interruption process are limited by the muffler attached to the lower end fitting. When installed outdoors, the arc products are exhausted. During the interrupting process, current continues to flow in the circuit and in the fuse until a current zero is reached. When the arc is extinguished at current zero, the voltage across the fuse will attempt to re-ignite the arc. The voltage across the fuse immediately after the voltage zero is the sum of the circuit power frequency recovery voltage and a high frequency oscillatory voltage controlled by the circuit inductance and stray capacitance. This high frequency oscillatory voltage is called the Transient Recovery Voltage (TRV). After the fuse has interrupted a fault current at a natural circuit current zero, the dielectric gap must withstand this combined voltage to prevent re-ignition of the arc for a successful interruption to occur. The rated maximum voltage of a DBU fuse is the highest rms voltage at which the fuse is designed to operate. The dielectric withstand level corresponds to insulation levels of power class and distribution class equipment, as DBU fuses can be used in either environment. Maximum voltage ratings for DBU fuses are: 17 kv, 7 kv, and 8 kv. Note Outdoor mountings available for 17 kv and 7 kv. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-41
.6 Expulsion Fuses DBU Type Fuses Fuses should never be applied where the available fault current exceeds the rated maximum interrupting current of the fuse, or the maximum value of the power frequency system voltage exceeds the rated maximum voltage of the fuse. The rated maximum interrupting current values for DBU fuses are listed on Page V14-T-44. The continuous current rating of a DBU power fuse should equal or exceed the maximum load current where the fuse is applied. DBU fuse units are available with continuous current ratings up to 00A and are designated as either E- or K-rated. These designations are defined in ANSI/IEEE Std. C7.4 and C7.46. Coordination Consideration Coordination considerations must be made to help determine what type of fuse is applied. The DBU power fuse interrupts at a natural current zero in the current wave and allows a minimum of a half cycle of fault current to flow before the fault is cleared. The time-current characteristics associated with a DBU has a rather gradual slope making it easier to coordinate with downstream equipment. In addition, the DBU is ideal for higher voltage (up to 8 kv) and high current applications (through 00A). It is important to examine the minimum melting and total clearing time-current characteristics of this particular fuse. The melting time is the time in seconds required to melt the fuse element. This curve indicates when or even if the element of the fuse will melt for different symmetrical current magnitudes. The total clearing time is the total amount of time it takes to clear a fault once the element has melted. The total clearing time is really the sum of the melting time and the time the fuse arcs during the clearing process. The DBU power fuse is offered in three configurations for use with high currents: E (Standard), K (Fast) and SE (Slow). The curves for the SE are less inverse and allow for more of a time delay at high currents. DBU Power Fuse Short-Circuit Interrupting s Interrupting mva Nominal kv Interrupting Amperes (Three-Phase Symmetrical) Symmetrical DBU System Based on X/R = 16 Asymmetrical Where X/R = 16 17 7. 14,000,400 175 4.8/8.Y 00 7./1.47Y 00 7.6/1.Y 0 1.8 5 14.4 50 16.5 400 7 7./1.47Y 1,500 0,000 70 7.6/1.Y 85 1.8 00 14.4 10 16.5 65.0 500 14.4/4.9Y 540 0/4.5Y 8.0 10,000 16,000 14.4/4.9Y 7.6 475 0/4.5Y 600 4.5 600 Note Applies to kv single-insulator style only, for the protection of single-phase-to-neutral circuits (line or transformers) and three-phase transformers or banks with solidly grounded neutral connections. Finally, low currents, usually referred to as overload currents, must also be considered. The DBU and other expulsion fuses have a rather low thermal capacity and cannot carry overloads of the same magnitude and duration as motors and transformers of equal continuous currents. For this reason, the fuse must be sized with the full load current in mind. This consideration should be made so the fuse does not blow on otherwise acceptable overloads and inrush conditions. The Eaton DBU family of power fuses is broad and comprehensive. Refer to the table below to review the ratings available for most application requirements. The final selection process for new applications will include the fuse unit, end fittings, and a mounting. V14-T-4 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBU Type Fuses.6 Testing and Performance Standards Testing Quality standards Eaton does not compromise when performance, quality and safety are involved. Exacting standards have been established relative to the design, testing and application of expulsion type power fuses. Compliance with these standards ensures the best selection and performance. DBU type power fuses are designed and tested to applicable portions of ANSl standards as well as other industry standards. The ANSl standards are Consensus Standards jointly formulated by IEEE and NEMA. IEEE (Institute of Electrical and Electronic Engineers) is an objective technical organization made up of manufacturers, users and other general interest parties. NEMA (National Electrical Manufacturers Association) is an electrical equipment manufacturer only organization with members like Eaton. ANSl (American National Standards Institute) is a nonprofit, privately funded membership organization that coordinates the development of U.S. voluntary national standards. It is also the U.S. member body to the non-treaty international standards bodies, such as International Organization for Standardization ([SO) and the International Electrotechnical Commission (IEC). The specific standards associated with DBU power fuses are: ANSl C7.40 Service Conditions and Definitions ANSl C7.41 Power Fuse Design and Testing ANSl C7.4 Distribution Fuse s and Specification ANSl C7.46 Power Fuse s and Specifications ANSI ~7.48 Power Fuse Application, Operation and Maintenance Testing DBU power fuse unit design testing was performed on standard production fuses, holders, mountings and accessories. Demanding tests were performed by Eaton Technical Support and also at recognized independent power testing laboratories. Thermal and interrupting testing was conducted at 17, 7, and 8 kv levels. The entire series of tests was conducted in a specific sequence as stipulated by governing standards without any maintenance being performed. All test results are verified by laboratory tabulations and oscillogram plots. Quality Every effort is made to ensure the delivery of quality fuse units and customer satisfaction. All Eaton fuses are completely inspected at each manufacturing stage. In addition to ongoing quality control inspections, testing is performed prior to shipment. A Micro-Ohm Resistance Test is performed on each fuse to assure proper element construction, alignment and tightness of electrical connections. Construction integrity testing is also performed on every unit. Each DBU fuse unit is checked to ensure that all items are supplied in keeping with manufacturing drawings. Individual fuses are packed in a plastic bag and then put into individual cartons. In addition, fuses are overpacked in a shipping carton to prevent shipping damage. Finally, mountings are packaged in heavy cardboard containers with reinforced wooden bases. Installation Installation instructions are contained within I.L. 6-64. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-4
.6 Expulsion Fuses DBU Type Fuses Selection DBU Fuse Units DBU Mounting s Interrupting s DBU Fuse Interrupting s Fuse Unit Maximum Rated Voltage kv Maximum System Voltage kv Type DBU Outdoor Vented rms Symmetrical ka Type DBU Voltage 17 = 17.1 kv 7 = 7 kv 8 = 8 kv 17.1 17.1 14.0 14.0 7 7 1.5 1.5 8 8 10.0 8.5 Indoor with Muffler rms Symmetrical ka DBU 17 100 E Voltage 17 = 17.1 kv 7 = 7 kv 8 = 8 kv Insulator G = Glass polyester P = Porcelain 5 6 7 8 10 1 1 15 0 5 Ampere 0 40 50 65 80 100 15 140 150 175 00 DBU 17 - G DM - L Speed E K SE Hardware DL = Disconnect live parts DM = Disconnect mounting EFID = Indoor end fittings EFOD = Outdoor end fittings MFLR = Muffler NL = Non-disconnect live parts NLP = Non-disconnect live parts (SS) NM = Non-disconnect mounting NMP = Non-disconnect mounting (SS) Connection Side L = Left hand R = Right hand V14-T-44 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBU Type Fuses.6 Product Selection DBU17 Type Standard E Speed Expulsion Fuse Units Voltage (kv) Nominal Maximum Ampere DBU17 Type K Speed Expulsion Fuse Units Voltage (kv) Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 14.4 17.1 5 DBU17-5E.1 (1.0) TC6670701 TC6670001 14.4 17.1 7 DBU17-7E.1 (1.0) TC6670701 TC6670001 14.4 17.1 10 DBU17-10E.1 (1.0) TC6670701 TC6670001 14.4 17.1 1 DBU17-1E.1 (1.0) TC6670701 TC6670001 14.4 17.1 15 DBU17-15E.1 (1.0) TC6670701 TC6670001 14.4 17.1 0 DBU17-0E.1 (1.0) TC6670701 TC6670001 14.4 17.1 5 DBU17-5E.1 (1.0) TC6670701 TC6670001 14.4 17.1 0 DBU17-0E.1 (1.0) TC6670701 TC6670001 14.4 17.1 40 DBU17-40E.1 (1.0) TC6670701 TC6670001 14.4 17.1 50 DBU17-50E.1 (1.0) TC6670701 TC6670001 14.4 17.1 65 DBU17-65E.1 (1.0) TC6670701 TC6670001 14.4 17.1 80 DBU17-80E.1 (1.0) TC6670701 TC6670001 14.4 17.1 100 DBU17-100E.1 (1.0) TC6670701 TC6670001 14.4 17.1 15 DBU17-15E.1 (1.0) TC6670701 TC6670001 14.4 17.1 150 DBU17-150E.1 (1.0) TC6670701 TC6670001 14.4 17.1 175 DBU17-175E.1 (1.0) TC6670701 TC6670001 14.4 17.1 00 DBU17-00E.1 (1.0) TC6670701 TC6670001 Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 14.4 17.1 DBU17-K.1 (1.0) TC6670801 TC6670101 14.4 17.1 6 DBU17-6K.1 (1.0) TC6670801 TC6670101 14.4 17.1 8 DBU1780K.1 (1.0) TC6670801 TC6670101 14.4 17.1 10 DBU17-10K.1 (1.0) TC6670801 TC6670101 14.4 17.1 1 DBU17-1K.1 (1.0) TC6670801 TC6670101 14.4 17.1 15 DBU17-15K.1 (1.0) TC6670801 TC6670101 14.4 17.1 0 DBU17-0K.1 (1.0) TC6670801 TC6670101 14.4 17.1 5 DBU17-5K.1 (1.0) TC6670801 TC6670101 14.4 17.1 0 DBU17-0K.1 (1.0) TC6670801 TC6670101 14.4 17.1 40 DBU17-40K.1 (1.0) TC6670801 TC6670101 14.4 17.1 50 DBU17-50K.1 (1.0) TC6670801 TC6670101 14.4 17.1 65 DBU17-65K.1 (1.0) TC6670801 TC6670101 14.4 17.1 80 DBU17-80K.1 (1.0) TC6670801 TC6670101 14.4 17.1 100 DBU17-100K.1 (1.0) TC6670801 TC6670101 14.4 17.1 140 DBU17-140K.1 (1.0) TC6670801 TC6670101 14.4 17.1 00 DBU17-00K.1 (1.0) TC6670801 TC6670101 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-45
.6 Expulsion Fuses DBU Type Fuses DBU17 Type Slow E Speed Expulsion Fuse Units Voltage (kv) Nominal Maximum Ampere DBU7 Type Standard E Speed Expulsion Fuse Units Voltage (kv) Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 14.4 17.1 15 DBU17-15SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 0 DBU17-0SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 5 DBU17-5SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 0 DBU17-0SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 40 DBU17-40SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 50 DBU17-50SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 65 DBU17-65SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 80 DBU17-80SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 100 DBU17-100SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 15 DBU17-15SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 150 DBU17-150SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 175 DBU17-175SE.1 (1.0) TC6670601 TC6670901 14.4 17.1 00 DBU17-00SE.1 (1.0) TC6670601 TC6670901 Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 7 5 DBU7-5E.5 (1.15) TC6670701 TC6670901 7 7 DBU7-7E.5 (1.15) TC6670701 TC6670901 7 10 DBU7-10E.5 (1.15) TC6670701 TC6670901 7 1 DBU7-1E.5 (1.15) TC6670701 TC6670901 7 15 DBU7-15E.5 (1.15) TC6670701 TC6670901 7 0 DBU7-0E.5 (1.15) TC6670701 TC6670901 7 5 DBU7-5E.5 (1.15) TC6670701 TC6670901 7 0 DBU7-0E.5 (1.15) TC6670701 TC6670901 7 40 DBU7-40E.5 (1.15) TC6670701 TC6670901 7 50 DBU7-50E.5 (1.15) TC6670701 TC6670901 7 65 DBU7-65E.5 (1.15) TC6670701 TC6670901 7 80 DBU7-80E.5 (1.15) TC6670701 TC6670901 7 100 DBU7-100E.5 (1.15) TC6670701 TC6670901 7 15 DBU7-15E.5 (1.15) TC6670701 TC6670901 7 150 DBU7-150E.5 (1.15) TC6670701 TC6670901 7 175 DBU7-175E.5 (1.15) TC6670701 TC6670901 7 00 DBU7-00E.5 (1.15) TC6670701 TC6670901 V14-T-46 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBU Type Fuses.6 DBU7 Type K Speed Expulsion Fuse Units Voltage (kv) Nominal Maximum Ampere DBU7 Type Slow E Speed Expulsion Fuse Units Voltage (kv) Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 7 DBU7-K.5 (1.15) TC6670801 TC66704001 7 6 DBU7-6K.5 (1.15) TC6670801 TC66704001 7 8 DBU7-8K.5 (1.15) TC6670801 TC66704001 7 10 DBU7-10K.5 (1.15) TC6670801 TC66704001 7 1 DBU7-1K.5 (1.15) TC6670801 TC66704001 7 15 DBU7-15K.5 (1.15) TC6670801 TC66704001 7 0 DBU7-0K.5 (1.15) TC6670801 TC66704001 7 5 DBU7-5K.5 (1.15) TC6670801 TC66704001 7 0 DBU7-0K.5 (1.15) TC6670801 TC66704001 7 40 DBU7-40K.5 (1.15) TC6670801 TC66704001 7 50 DBU7-50K.5 (1.15) TC6670801 TC66704001 7 65 DBU7-65K.5 (1.15) TC6670801 TC66704001 7 80 DBU7-80K.5 (1.15) TC6670801 TC66704001 7 100 DBU7-100K.5 (1.15) TC6670801 TC66704001 7 140 DBU7-140K.5 (1.15) TC6670801 TC66704001 7 00 DBU7-00K.5 (1.15) TC6670801 TC66704001 Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 7 15 DBU7-15SE.5 (1.15) TC6670601 TC6670801 7 0 DBU7-0SE.5 (1.15) TC6670601 TC6670801 7 5 DBU7-5SE.5 (1.15) TC6670601 TC6670801 7 0 DBU7-0SE.5 (1.15) TC6670601 TC6670801 7 40 DBU7-40SE.5 (1.15) TC6670601 TC6670801 7 50 DBU7-50SE.5 (1.15) TC6670601 TC6670801 7 65 DBU7-65SE.5 (1.15) TC6670601 TC6670801 7 80 DBU7-80SE.5 (1.15) TC6670601 TC6670801 7 100 DBU7-100SE.5 (1.15) TC6670601 TC6670801 7 15 DBU7-15SE.5 (1.15) TC6670601 TC6670801 7 150 DBU7-150SE.5 (1.15) TC6670601 TC6670801 7 175 DBU7-175SE.5 (1.15) TC6670601 TC6670801 7 00 DBU7-00SE.5 (1.15) TC6670601 TC6670801 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-47
.6 Expulsion Fuses DBU Type Fuses DBU8 Type Standard E Speed Expulsion Fuse Units Voltage (kv) Nominal Maximum Ampere DBU8 Type K Speed Expulsion Fuse Units Voltage (kv) Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 4.5 8 5 DBU8-5E.8 (1.) TC6670701 TC6670901 4.5 8 7 DBU8-7E.8 (1.) TC6670701 TC6670901 4.5 8 10 DBU8-10E.8 (1.) TC6670701 TC6670901 4.5 8 1 DBU8-1E.8 (1.) TC6670701 TC6670901 4.5 8 15 DBU8-15E.8 (1.) TC6670701 TC6670901 4.5 8 0 DBU8-0E.8 (1.) TC6670701 TC6670901 4.5 8 5 DBU8-5E.8 (1.) TC6670701 TC6670901 4.5 8 0 DBU8-0E.8 (1.) TC6670701 TC6670901 4.5 8 40 DBU8-40E.8 (1.) TC6670701 TC6670901 4.5 8 50 DBU8-50E.8 (1.) TC6670701 TC6670901 4.5 8 65 DBU8-65E.8 (1.) TC6670701 TC6670901 4.5 8 80 DBU8-80E.8 (1.) TC6670701 TC6670901 4.5 8 100 DBU8-100E.8 (1.) TC6670701 TC6670901 4.5 8 15 DBU8-15E.8 (1.) TC6670701 TC6670901 4.5 8 150 DBU8-150E.8 (1.) TC6670701 TC6670901 4.5 8 175 DBU8-175E.8 (1.) TC6670701 TC6670901 4.5 8 00 DBU8-00E.8 (1.) TC6670701 TC6670901 Nominal Maximum Ampere Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 4.5 8 DBU8-K.8 (1.) TC6670801 TC66704001 4.5 8 6 DBU8-6K.8 (1.) TC6670801 TC66704001 4.5 8 8 DBU8-8K.8 (1.) TC6670801 TC66704001 4.5 8 10 DBU8-10K.8 (1.) TC6670801 TC66704001 4.5 8 1 DBU8-1K.8 (1.) TC6670801 TC66704001 4.5 8 15 DBU8-15K.8 (1.) TC6670801 TC66704001 4.5 8 0 DBU8-0K.8 (1.) TC6670801 TC66704001 4.5 8 5 DBU8-5K.8 (1.) TC6670801 TC66704001 4.5 8 0 DBU8-0K.8 (1.) TC6670801 TC66704001 4.5 8 40 DBU8-40K.8 (1.) TC6670801 TC66704001 4.5 8 50 DBU8-50K.8 (1.) TC6670801 TC66704001 4.5 8 65 DBU8-65K.8 (1.) TC6670801 TC66704001 4.5 8 80 DBU8-80K.8 (1.) TC6670801 TC66704001 4.5 8 100 DBU8-100K.8 (1.) TC6670801 TC66704001 4.5 8 140 DBU8-140K.8 (1.) TC6670801 TC66704001 4.5 8 00 DBU8-00K.8 (1.) TC6670801 TC66704001 V14-T-48 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBU Type Fuses.6 DBU8 Type Slow E Expulsion Fuse Units Voltage (kv) Nominal Maximum Ampere DBU Type Fuse Mountings and Accessories Indoor Applications DBU Type Fuse Mountings and Accessories Outdoor Applications Non-Loadbreak Voltage (kv) Mountings Performance Curves Approximate Shipping Weight Lbs (kg) Minimum Melting Total Clearing 4.5 8 15 DBU8-15SE.8 (1.) TC6670601 TC6670801 4.5 8 0 DBU8-0SE.8 (1.) TC6670601 TC6670801 4.5 8 5 DBU8-5SE.8 (1.) TC6670601 TC6670801 4.5 8 0 DBU8-0SE.8 (1.) TC6670601 TC6670801 4.5 8 40 DBU8-40SE.8 (1.) TC6670601 TC6670801 4.5 8 50 DBU8-50SE.8 (1.) TC6670601 TC6670801 4.5 8 65 DBU8-65SE.8 (1.) TC6670601 TC6670801 4.5 8 80 DBU8-80SE.8 (1.) TC6670601 TC6670801 4.5 8 100 DBU8-100SE.8 (1.) TC6670601 TC6670801 4.5 8 15 DBU8-15SE.8 (1.) TC6670601 TC6670801 4.5 8 150 DBU8-150SE.8 (1.) TC6670601 TC6670801 4.5 8 175 DBU8-175SE.8 (1.) TC6670601 TC6670801 4.5 8 00 DBU8-00SE.8 (1.) TC6670601 TC6670801 Voltage (kv) Nominal Maximum Ampere Non-Loadbreak Loadbreak Mountings Live Parts Mountings Live Parts Catalog Number Catalog Number Catalog Number Catalog Number End Fittings Catalog Number Muffler Catalog Number Connection 14.4 17.1 00 DBU17-GNM-L DBU17-NL-L DBU17-GDM-L DBU17-DL-L DBU-EFID DBU-MFLR Left hand connections 14.4 17.1 00 DBU17-GNM-R DBU17-NL-R DBU17-GDM-R DBU17-DL-R DBU-EFID DBU-MFLR Right hand connections 14.4 17.1 00 DBU17-GNMP-L DBU17-NLP-L DBU-EFID DBU-MFLR Left hand connections stainless steel hardware 14.4 17.1 00 DBU17-GNMP-R DBU17-NLP-R DBU-EFID DBU-MFLR Right hand connections stainless steel hardware 7 00 DBU7-GNM-L DBU7-NL-L DBU7-GDM-L DBU7-DL-L DBU-EFID DBU-MFLR Left hand connections 7 00 DBU7-GNM-R DBU7-NL-R DBU7-GDM-R DBU7-DL-R DBU-EFID DBU-MFLR Right hand connections 7 00 DBU7-GNMP-L DBU7-NLP-L DBU-EFID DBU-MFLR Left hand connections stainless steel hardware 7 00 DBU7-GNMP-R DBU7-NLP-R DBU-EFID DBU-MFLR Right hand connections stainless steel hardware 4.5 8 00 DBU8-GNM-L DBU8-NL-L DBU-EFID DBU-MFLR Left hand connections 4.5 8 00 DBU8-GNM-R DBU8-NL-R DBU-EFID DBU-MFLR Right hand connections 4.5 8 00 DBU8-GNMP-L DBU8-NLP-L DBU-EFID DBU-MFLR Left hand connections stainless steel hardware 4.5 8 00 DBU8-GNMP-R DBU8-NLP-R DBU-EFID DBU-MFLR Right hand connections stainless steel hardware Nominal Maximum Ampere Catalog Number End Fittings Catalog Number 14.4 17.1 00 DBU17-DM DBU-EFOD 7 00 DBU7-DM DBU-EFOD Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-49
.6 Expulsion Fuses DBU Type Fuses Dimensions Dimensions are in Inches (mm) Non-Loadbreak Mounting D E F Side View Catalog Dimensions kv Max. Number kv BIL B D E F K 17 DBU17-GNM 95 18.00 (457.) 7 DBU7-GNM 15.5 (565.) 8 DBU8-GNM 150 8.5 (717.6) Loadbreak Mounting 0.50 (1.7) 0.56 (14.) Dia. 6.50 (165.1) 5.50 (19.7) 0.50 (1.7).0 (51.6) 0.50 x 0.75 (1.7 x 19.1) Mtg. Slots (Four) B A Mounting Base Detail 4.5 (108.0) Front View (Fuse removed) Notes Bus for cable termination on right side of mounting. Bus for cable termination on left side of mounting. 16.87 (48.0) 19.6 (498.6) 1. (541.8) 1.00 (5.4) 0.50 (1.7) 0.75 (19.1) B K 1.1 (07.9) 14.87 (77.7) 16.58 (41.1) 0.75 (19.1) 0.56 (14.) Dia. 8.81 (.8) 11.56 (9.6) 1.8 (7.).5 (57.).5 (57.).5 (57.).00 (76.) 1.50 (8.1) K 1.88 (47.8).50 (88.9) Front View (Fuse removed) B H J Side View Catalog Dimensions kv Max. Number kv BIL A B C D E F G H J K L M 17 DBU17-GDML 95.50 18.44 0.50 19.5 14.5 9.5 18.44 9.44 11.50.0 9.50.75 DBU17-GDMR (571.5) (468.4) (774.7) (489.0) (6.0) (5.0) (468.4) (40.0) (9.1) (76.) (41.) (95.) 7 DBU7-GDML 15 6.75.69 4.6 1.8 16.75 11.56.69 11.75 1.50.0 9.50.75 DBU7-GDMR (679.5) (576.) (879.6) (54.1) (45.5) (9.6) (576.) (98.5) (4.0) (76.) (41.) (95.) 4 M C D E F G L.0 (51.6) V14-T-50 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses DBU Type Fuses.6 Dimensions are in Inches (mm) Indoor DBU Fuse Fittings 0.94 (4.0) 0.7 (18.) Ref. Outdoor DBU Fuse Fittings 0.94 (4.0) 0.7 (18.) Ref. 1.4 (1.6) Dia. 1.4 (1.6) Dia. A B Ref. C A B Fuse Unit Fittings kv Max. A B C 17 19.08 (484.6) 7.19 (58.) 8.8 (7.0) Fuse Unit Fittings kv Max. A B 17 19.08 (484.6) 19.41 (49.0) 7.58 (57.5) 0.69 (779.5). (81.0) 8 8.76 (70.5) 6.87 (96.5) 8.50 (978.0) 7.58 (57.5).91 (581.9) 8 8.76 (70.5) 8.09 (71.5) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-51
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) RBA Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) Product Description BA Fuses Westinghouse Electric Company introduced the BA range of DE-ION boric acid refillable fuses in the 190s, and BA refill units have been in continuous use and production since then. Eaton still manufactures BA refill units for use in existing fuse holders and installations. However, the manufacture of most BA fuse holders and all BA mountings has been discontinued. RBA and RDB Fuses In 1969, Westinghouse Electric Company introduced the redesigned and improved RBA (indoor with exhaust control device filter or condenser) and RDB (vented outdoor dropout) ranges of boric acid DE-ION fuses to replace the BA range of fuses Eaton s RBA (Refillable Boric Acid) and RDB (Refillable Dropout Boric acid) power fuses are expulsion type power fuses designed for indoor or weatherproof enclosure (RBA) or outdoor vented (RDB) applications. RBA/RDB fuses are renewable (refillable) as the descriptions above state. The whole fuse unit is not discarded after a fault interruption. Usually, only one piece of the fuse, the refill unit, needs to be replaced after an interruption and for this reason, RBA/RDB fuses provide an economical approach to the protection of power circuits rated up to a maximum of 8 kv. They are especially well suited for large industrial load fusing needs. Contents Description Page RBA/RDB Type Fuses (Including Superseded BA Fuses) Installation............................. V14-T-5 Applications............................ V14-T-5 Operation and Features.................. V14-T-5 Selection................ V14-T-58 Interrupting s..................... V14-T-59 Product Selection....................... V14-T-60 Dimensions............................ V14-T-68 An RBA/RDB fuse is basically a vented electromechanical device which is applicable to many different power applications. RBA/RDB power fuses are particularly effective for higher operational voltage and higher continuous current applications. RBA/RDB expulsion type fuses do not limit the magnitude of the fault current during operation. They limit the duration of the fault in the electrical system. RBA/RDB expulsion fuses are available in a wide range of ratings to simplify the selection process. They offer continuous current ratings of 0.5 through 70 amperes, at maximum voltages of 8. through 8 kv and with symmetrical interrupting ratings up to 7,500 amperes. RBA and RBB fuses both use replaceable RBA refill units, which are available with both standard speed or time lag characteristics, that when combined with the wide range of ratings, allow maximization of both coordination and protection. RBA power fuses can be used with either disconnect or non-disconnect mounting, so matching these fuses into the equipment type and layout is a simplified process. Thus RBA fuses are easy to install and maintain. RDB fuses are only available for use in outdoor dropout style mountings. RBA power fuses have a long and enviable reputation for outstanding protection and reliability, broad selection possibilities, ease of installation and economy over time. Installation See Publication No. IL.6-65A-1C for installation instructions. V14-T-5 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses.7 Applications In general, an electrical power system consists of three major parts: generation, transmission and distribution. The power distribution area offers an especially significant potential for RBA and RDB power fuse applications. This power distribution system potential could be with the utility, an industrial or commercial user, or the manufacturer of electrical equipment. Since the RBA/RDB power fuse is refillable (renewable), it is economical for use in a variety of distribution system applications. Primarily, the RBA/RDB is designed for use on: Load interrupter switchgear; Power transformers; High voltage capacitors; Pad mounted transformers RBA fuses can be installed in indoor metalclad or metal enclosed load interrupter switchgear, or fuse cabinets for both indoor and outdoor use. RDB fuses are intended for outdoor use, but protecting the same types of loads as RBA fuses. A common application for RBA power fuses is in the primary circuit of a power transformer. In this application, fuses must isolate the transformer circuit from the upstream supply when a fault occurs in or beyond the transformer, but must not operate on transformer inrush. RBA fuses can also be used to protect capacitor banks. Capacitors require protection from fault currents which could cause a capacitor to rupture. Selection of the fuse type is dependent on many factors, including: user or supplier preference, cost and system coordination. If the required voltage and continuous current ratings are high and downstream coordination is critical, RBA power fuses can provide very effective protection. See Page V14-T-0 for more information on expulsion fuse application. Operation and Features A renewable (refillable) boric acid expulsion type fuse comprises the following major components: A replaceable refill unit, comprising the current responsive element and the arc de-ionizing and extinguishing boric acid sold filler material, all contained within a high strength glass epoxy tube and with end connections for interfacing with the fuse holder. This is the part of the fuse which is discarded after a fuse interruption A reusable fuse holder. The fuse holder comprises a high strength glass epoxy tube and cast high conductivity end connections to interface the fuse holder with the internal refill unit and the external fuse mounting. The fuse holder assembly also includes the spring and shunt assembly which is pre-loaded when a fuse holder is charged with a refill unit For indoor applications only (RBA fuses only), a reusable exhaust control device, (condenser, discharge filter, or high capacity discharge filter) which de-ionizes and absorbs all or part of the expulsion exhaust from the fuse during operation A reusable mounting to interface the loaded fuse holder assembly into the protected circuit. The mounting comprises the live parts, a pair of assembles that interface with and securely support the fuse holder, and provide suitable connection points for the external circuit. Below the live parts are insulators, appropriate for the system insulation rating, which are mounted on a rigid metal support to prevent flexing of the mounting during fuse or associated switch operation Mountings are available in disconnect and nondisconnect configurations for RBA fuses and a dropout configuration for RDB fuses. A non-disconnect mounting permanently mounts the fuse holder containing the refill with tension type fuse clips or bolted connections until it is completely removed. The disconnect mounting permits a fuse to be opened, closed, or even lifted out of the mounting once it is opened. An insulated stick with a hook on the end of it is used to perform the opening and closing functions in a disconnect mounting. The insulated stick is referred to as a switch stick. Depending on the point of application, it is often necessary to attach a discharge suppressor (filter, condenser or muffler) to the fuse unit. This metallic device acts to retard, to varying degrees, the gases and noise associated with an expulsion type fuse. When the fuse element melts inside the refill, an arc is initiated and elongated. The heat of the arc decomposes the boric acid producing water vapor and boric anhydride. These two byproducts extinguish the arc by blasting through it and exit from the bottom of the fuse. The gases are usually assisted with the interruption process by a spring loaded mechanical device located inside the fuse holder. In addition to the exhaust produced during interruption, a significant amount of noise also results. At this point, the previously mentioned suppressor is often used to limit this discharge and noise. The type of suppressor installed depends upon the requirements at the point of application. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-5
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) RBA and RDB Details Eaton s renewable RBA or RDB fuse unit is not totally discarded after it interrupts a fault. This makes the RBA quite economical to use over time. Normally, only the fuse refill is discarded with the RBA design. The RBA power fuse provides performance characteristics especially intended for power system protection up to an operational voltage of 4.5 kv. Because RBA fuses are available in a wide range of continuous current ratings and time-current characteristics, close fusing can be achieved, maximizing the protection and overall coordination. The quality and accuracy of the RBA design and manufacturing process ensures accurate initial and ongoing melting time-current characteristics. Proven RBA power fuses perform as intended and operate exactly when and how they should, and do not operate when they should not operate. This is a subtle but important point. Each individual RBA fuse component is discussed individually. Its makeup and unique role in the protection process are also discussed. RBA Refill Unit The internal parts of an RBA refill unit are a calibrated current responsive fuse element and a parallel high strength strain element, an arcing rod, an auxiliary arcing rod assembly, and a solid boric acid liner which assists with the interruption. The lower end of the fuse element is attached to an end cap which is securely crimped onto the lower end of a glass-epoxy refill tube and the upper end is brazed or securely crimped to the main arcing rod. The upper end of the tube permits the upper end of the arcing rod to exit the refill tube through a molded plug. At the upper end of the refill unit, the plug is sealed around the arcing rod where it exits from the refill tube. The lower end of the refill unit is sealed with a blowout disc to maintain the integrity of the seal in RDB outdoor applications. The seal must be removed before an exhaust control device is fitted to a fuse holder for indoor applications, to prevent clogging the exhaust control device. The calibrated fuse element assembly determines the operational time-current characteristics of the RBA fuse. It is sensitive to the heat produced by the amount of current flowing. How, when or if it melts for different magnitudes of current and amounts of time, a particular current magnitude experienced by the fuse is indicated on the specific time-current characteristic curve for a particular fuse. RBA fuse elements are available in standard and time-lag configurations. The standard element assemblies are made of pure silver with a parallel Nichrome strain wire, and the time-lag elements have a calibrated tin alloy joint. The Nichrome wire relieves the fuse element of any strain put on it by the spring loaded arcing rod. This parallel high resistance vaporizes immediately after the fuse element melts. The heavy copper cylindrical arcing rod is contained within the main bore of the boric acid liner and performs two functions. Under normal operating conditions, it carries the continuous rated current of the fuse. When the fuse element melts during a fault interruption, the acing rod lengthens the arc as it is pulled through the boric acid liner. This backward movement occurs because the arcing rod is under spring tension from the outside of the refill. An auxiliary arcing rod is contained within the small bore of the boric acid liner. It plays a role in the proper operation of the fuse under low intensity fault conditions. No load current is carried by the auxiliary wire. RBA Refill Unit Operation Under fault conditions, the fuse and strain elements melt and the arcing rods pull the arc back through the boric acid liner. Intense heat from the arc separates the hydrated boric acid, producing water vapor and inert boric anhydride. This expanding mixture extinguishes the arc by blasting through and deionizing it. The exhaust caused by the interruption exits from the bottom of the fuse. The de-ionizing action prevents the arc from restriking after a current zero. RBA fuses are designed to interrupt short-circuit currents within 1/ cycle at the next current zero. Two different chambers in parallel within the solid boric acid liner provide for selective operation and interruption for both low current and high current faults using the principles of de-ionization. Low Fault Interruption When a low current fault occurs, the main fuse and strain elements melt and the main and auxiliary arcing rods start to draw through the boric acid liner. At this stage, the main rod circuit is open, shorted out by the auxiliary rod. The fine auxiliary coil rapidly melts and the arc is extinguished in the small bore of the boric acid liner. The arcing rod drawing no arc, moves back to an open position because of the spring tension. V14-T-54 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses).7 High Fault Operation A high fault current melts the main fuse and strain element and transfers to the auxiliary fuse wire. In the small bore, the high arc current creates a high voltage causing the arcing rod in the main bore to restrike. The arcing rod then draws the arc through the main bore where it is quickly extinguished. RBA Refill Unit s RBA fuse refills are ANSI/ IEEE E rated. The E rating defines a current response that is intended to produce a degree of electrical interchangeability among fuse manufacturers. A 100E fuse carries 100 amperes or below continuously and will melt in a defined amount of time for a defined range of current above the fuse s continuous current magnitude. This performance will be the same for all fuses with an E designation. RBA Fuse Holder An RBA fuse holder has a glass epoxy tube which encloses and supports the fuse refill unit. Also inside the tube is a spring and shunt assembly, which makes an electrical connection to the top end of the refill unit. At the ends, the fuse holder has high conductivity copper alloy ferrules, which include the required features to interface with a non-disconnect, or disconnect mounting. The holder delivers excellent dielectric strength as well as mechanical strength for support purposes. The RBA holder is not suitable for outdoor applications. RDB Fuse Holder An RDB fuse holder has a glass epoxy tube which is coated with a protective gray colored UV resistant coating for outdoor application. This tube encloses and supports the fuse refill unit. Also inside the tube is a spring and shunt assembly which makes an electrical connection to the top end of the refill unit. The RBD spring and shunt assembly incorporates a ballistic trip pin to unlatch the fuse holder when the fuse operates, initiating the dropout action. At the ends, the fuse holder has high conductivity silver plated copper alloy ferrules, which include the required features to interface with a dropout mounting. The holder delivers excellent dielectric strength as well as mechanical strength for support purposes. The RDB holder is designed for outdoor applications with the UV protected tube and silver plated terminals. After an RBA or RDB fuse unit performs its function by interrupting a fault, the fuse holder is removed from its mounting, opened and only the fuse refill unit is replaced. The fuse unit can then be once again put back into operation. Spring and Shunt Assembly A spring and shunt assembly comprises a stainless steel helical spring that encloses a tangle free flexible braided high conductivity copper shunt, which prevents the spring from conducting load or fault current. This assembly attaches on the lower end to the threaded end of the refill unit, and at the top end to the top contact of the fuse holder. With the spring and shunt assembly properly attached to and enclosed in the holder, the refill arcing rod assembly is put under spring tension, ready to move the rod through the boric acid liner. Holder Contacts and Hardware The high conductivity cast copper alloy upper and lower contacts of the fuse holder make low resistance electrical connections between the fuse refill and the mounting. These contacts also function to dissipate heat in normal service. The difference between nondisconnect and disconnect or dropout type fuse holders is the design of the top and bottom contacts of the fuse holder. Disconnect or dropout electrical contacts permit the fuse to be switch stick operated in a compatible disconnect or dropout type mounting. A hookeye is provided at the lower contact of the fuse holder to allow the fuse holder to be lifted into the hinge end of the mounting, and at the upper contact to allow the fuse holder to be swung to open or close the fuse. A nondisconnect contact requires the fuse unit to be supported in a permanent position until completely assembled into or removed from a compatible mounting. RBA and RDB Mountings Both non-disconnect and disconnect mountings are available for RBA power fuses. Dropout mountings are used with RDB fuse units. Mountings provide everything necessary to safely install a compatible RBA fuse unit into the protected circuit. The rigid mounting base is a metal support to which the porcelain or glass polyester insulators are attached. They insulate the live parts and the installed fuse unit from the mounting base and everything beyond the base. Live parts are available without the insulators or mounting base because some applications have unique mounting situations or the customer may choose to add additional value by supplying the insulators and base. It is still necessary to mount the live parts and insulators to a rigid support structure to prevent the fuse from unlatching due to mechanical disturbances. It is the responsibility of the customer to make sure that all mounting requirements are met when using just the live parts. RBA non-disconnect mountings can be supplied in one of two configurations. RBA-00 and RBA-400 mountings use upper and lower fuse clamps to hold the fuse unit in position. The clamps securely locate each end of the fuse holder into the mounting. RBA-800 mountings hold the fuse unit in place by solidly bolting it into position. The type of nondisconnect mounting to be used depends on the size and configuration of the fuse unit. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-55
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) RBA disconnect and RDB dropout mountings are switch stick-operable, facilitating opening, closing, and fuse replacement. The switch stick can be used to open and close the fuse, and also to lift the fuse into and out of the mounting. This keeps the operator well clear of any live parts during fuse removal. The lower end of the mounting is the hinged end and the upper end is the latched end and they work in conjunction with the compatible contacts of the fuse holder. Positive electrical connections are maintained at both ends of the mounting through the spring fingers at the lower end and clip type contacts on the upper end. The spring fingers are compressed on closing in of the fuse holder. RBA Exhaust Control Devices For indoor applications, phaseto-phase clearances and clearances to ground are generally restricted, and exhaust control devices must be used with RBA indoor expulsion fuses to retard the gases and reduce the noise associated with this type of fuse operation. Eaton offers three devices called the condenser, the discharge filter and the high capacity discharge filter the high capacity discharge filter has limited application at a specific voltage level. Other manufacturers refer to such devices as suppressors or silencers. The exhaust control device is threaded onto the bottom of an RBA fuse holder to minimize the noise and exhaust while containing the arc within the fuse during interruption, and also to clamp the lower end of the fuse refill unit into the fuse holder to ensure an adequately tight electrical and mechanical connection to minimize contact resistance and enable thermal conduction out of the refill unit. Exhaust control devices are metallic containers with copper screen inside to absorb and dissipate arc heat and condense steam to water. Although the inner and outer metals of the condenser and discharge filter are similar, the internal designs and venting methods are different. A condenser can be identified by the very restrictive bottom plate with only one small hole to allow the slow release, after interruption, of water absorbed by the condenser during a fuse interruption. A discharge filter is very less restrictive, and acts only to de-ionize the exhaust gases and reduce the flow rate of the discharge. The flow restriction in a condenser causes a back-pressure in the fuse which reduces the ability of the fuse to interrupt higher current faults. RBA/RDB Interruption and Protection The operation of RBA and RDB fuses must be considered for three sets of conditions: Normal loading This is when the circuit current is below the allowable continuous current or within the limits of the allowable short-time overload current shown on Page V14-T-8 of the Expulsion Fuse Introduction, for the particular set of application conditions. Under such normal loading, the fuse is not subject to any conditions that would degrade its long term integrity, or affect its ability to correctly interrupt fault conditions. Note: If the current is at or below the allowable continuous current for the particular set of conditions, that is, allowing for an elevated ambient temperature, high altitude, or an enclosure that restricts natural cooling, the temperature rise and maximum temperature of the fuse will be below the allowable limits stated in IEEE Std. C7.40-00. Note: If temporary overloads are below the temporary overload curve, with values based on the allowable continuous current, not on the rated continuous current, the fuse unit or refill unit, although it may be subject to temporarily slightly elevated temperatures, will not be subject to conditions that could affect its long term integrity or degrade its ability to correctly interrupt fault conditions. Note: After the fuse has been subjected to a temporary overload as indicated on Page V14-T-8, the current should be reduced to no more than the normal circuit full load condition typically (fuse rated continuous current) /1.4 for a period long enough for any temporary excess heat to be dissipated typically hours minimum. Overloading This occurs if the circuit current exceeds the allowable short-time overload conditions shown on Page V14-T-8 of the Expulsion Fuse Introduction, but is below 40% (for fuses rated 100E or below) or 64% (for fuses rated above 100E). V14-T-56 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses).7 If the fuse is exposed to these overload conditions, the long term integrity of the fuse refill unit can be degraded and its ability to correctly interrupt fault conditions may be seriously compromised. Note: With a fuse unit or fuse refill unit rated 100E or less, the element may melt at any current between 00% and 40% of the E rating, and with a fuse unit or refill unit rated more than 100E, the element may melt at any current between 0% and 64% of the E rating. These 10% ranges allow for variations between fuses because of manufacturing tolerances, and so on, on the fuse assembly. The minimum melting current of the fuse could be anywhere in the range between the value on the minimum-melting time-current characteristic and the value on the total-clearing time-current characteristic. At this end of the curve, the total-clearing and maximum-melting characteristics are effectively the same. The maximum values of the range are quoted here because this is the lower limit of the current at which it is known that the fuse element will melt. Faults This covers all conditions from about 40% for a fuse rating of 100E or less, or 64% for a fuse rating greater than 100E up to the interrupting rating of the fuse. The fuse will interrupt the fault current in a time indicated by the published fuse timecurrent characteristic curves. Interruption occurs at a natural current zero of the fault current, when the dielectric strength of the fuse withstands the combination of power frequency recovery voltage and transient recovery voltage. The noise of the operation and the quantity of exhaust products is reduced in indoor RBA applications by the use of an exhaust control device which partially absorbs and de-ionizes the exhaust gases. In outdoor applications, RDB fuses are exhausted to atmosphere. The rated maximum voltage of RBA or RDB power fuse is the highest power frequency system voltage at which the fuse is designed to operate. The dielectric withstand level corresponds to insulation levels of power class equipment. Rated maximum voltage levels for RBA power fuses are: 8., 15.5, 5.5 and 8.0 kv. Fuses, including RBA/RDB power fuses, should never be applied where the available fault current at the fuse location exceeds the rated maximum interrupting current of the fuse. The rated maximum interrupting current of an RBA fuse is the rms value of the symmetrical component (AC component) of the highest current which the RBA is has been demonstrated to be able to successfully interrupt under any condition of asymmetry. RBA interrupting ratings are shown in the table on Page V14-T-59. The rated continuous current of an RBA or RDB power fuse should at least equal or preferably exceed the maximum load current where the fuse is applied. Fuses are designed to carry their rated continuous current without exceeding the temperature rise outlined in IEEE standards. RBA and RDB fuses are available with continuous current ratings up to 70 amperes current ratings and carry an E designation. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-57
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) Selection RBA and RBT Fuse Units Maximum kv 8 = 8. kv 15 = 15.5 kv 5 = 5.5 kv 8 = 8 kv RBA and RBT Fuse Holders, Mounting and Accessories Maximum kv 8 = 8. kv 15 = 15.5 kv 5 = 5.5 kv 8 = 8 kv Type RBA RBA4 RBA8 RDB4 RDB8 15 RBA 100E Type RBA RBA4 RBT RBT4 Insulator P = Porcelain G = Glass polyester H = Porcelain, high LIWL (BIL) 0.5 5E 7E 10E 0E 5E 0E 40E 50E 15 RBA P NM Ampere 65E 80E 100E 15E 150E 175E 00E 50E 00E 400E Hardware COND = Condenser DH = Disconnect fuse holder DL = Disconnect live parts DM = Disconnect mounting FLTR = Filter HC-FLTR = High capacity filter IDH = Indicating disconnect fuse holder INH = Indicating non-disconnect fuse holder INH-B = Indicating non-disconnect fuse holder, bolt in NH = Non-disconnect fuse holder NL = Non-disconnect live parts NM = Non-disconnect mounting UL = Underhung live parts UM = Underhung mounting VL = Vertical live parts VM = Vertical mounting V14-T-58 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses).7 Interrupting s RBA and RBT Fuse Interrupting s Fuse Nominal Rated Voltage kv Maximum System Voltage kv RDB Outdoor Vented rms Symmetrical ka RBA and RBT Fuse Interrupting s, continued RBA Indoor with Filter rms Symmetrical ka.4.75 19.0 19.0 10.0 4.16 4.8 19.0 19.0 10.0 4.8 5.5 19.0 19.0 10.0 7. 8. 16.6 16.6 10.0 1.8 14.4 14.4 14.4 8.0 14.4 15.5 14.4 14.4 8.0 5.5 10.5 10.5 6. 4.5 8 6.9 6.9 5.0 Fuse Nominal Rated Voltage kv Maximum System Voltage kv RDB4/8 Outdoor Vented rms Symmetrical ka RBA4/8 Indoor with Filter rms Symmetrical ka RDB Indoor with Condenser rms Symmetrical ka RDA4/4 Indoor with Condenser rms Symmetrical ka.4.75 7.7 7.7 0.0 4.16 4.8 7.5 7.5 0.0 4.8 5.5 7.5 7.5 0.0 7. 8. 9.4 9.4 16.0 1.8 14.4 9.4 9.4 1.5 6.0 14.4 15.5 9.4 9.4 1.5 5.5 1.0 1.0 10.0 4.5 8 16.8 16.8 10.0 RBA4/8 Indoor with High Capacity Filter rms Symmetrical ka Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-59
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) Product Selection 8RBA and 8RBA4 Type Standard Speed and 8RBT and 8RBT4 Time Lag Fuse Refill Units Voltage (kv) Nominal Maximum Ampere Standard Speed Time Lag Catalog Catalog Number Number Approximate Shipping Weight Lbs (kg) Performance Curves Standard Speed Minimum Melting Total Clearing Time Lag Minimum Melting 7. 8. 10E 8RBA-10E 1.0 (0.5) TC68801 TC66701401 7. 8. 15E 8RBA-15E 1.0 (0.5) TC68801 TC66701401 Total Clearing 7. 8. 0E 8RBA-0E 8RBT-0E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 5E 8RBA-5E 8RBT-5E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 0E 8RBA-0E 8RBT-0E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 40E 8RBA-40E 8RBT-40E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 50E 8RBA-50E 8RBT-50E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 65E 8RBA-65E 8RBT-65E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 80E 8RBA-80E 8RBT-80E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 100E 8RBA-100E 8RBT-100E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 15E 8RBA-15E 8RBT-15E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 150E 8RBA-150E 8RBT-150E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 175E 8RBA-175E 1.0 (0.5) TC68801 TC66701401 7. 8. 00E 8RBA-00E 8RBT-00E 1.0 (0.5) TC68801 TC66701401 TC688601 TC6670101 7. 8. 0.5 8RBA4-.5.1 (1.0) TC6886101 TC66701501 7. 8. 8RBA4-.1 (1.0) TC6886101 TC66701501 7. 8. 5E 8RBA4-5E.1 (1.0) TC6886101 TC66701501 7. 8. 7E 8RBA4-7E.1 (1.0) TC6886101 TC66701501 7. 8. 10E 8RBA4-10E.1 (1.0) TC6886101 TC66701501 7. 8. 15E 8RBA4-15E.1 (1.0) TC6886101 TC66701501 7. 8. 0E 8RBA4-0E 8RBT4-0E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 5E 8RBA4-5E 8RBT4-5E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 0E 8RBA4-0E 8RBT4-0E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 40E 8RBA4-40E 8RBT4-40E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 50E 8RBA4-50E 8RBT4-50E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 65E 8RBA4-65E 8RBT4-65E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 70E 8RBA4-80E 8RBT4-80E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 100E 8RBA4-100E 8RBT4-100E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 15E 8RBA4-15E 8RBT4-15E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 150E 8RBA4-150E 8RBT4-150E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 175E 8RBA4-175E.1 (1.0) TC6886101 TC66701501 7. 8. 00E 8RBA4-00E 8RBT4-00E.1 (1.0) TC6886101 TC66701501 TC6886501 TC6670101 7. 8. 50E 8RBA4-50E 8RBT4-50E.1 (1.0) TC6886101 TC66701501 TC694501 TC66701101 7. 8. 00E 8RBA4-00E 8RBT4-00E.1 (1.0) TC6886101 TC66701501 TC694501 TC66701101 7. 8. 400E 8RBA4-400E 8RBT4-400E.1 (1.0) TC6886101 TC66701501 TC694501 TC66701101 7. 8. 450E () 8RBA4-50E () 8RBT-50E TC688610 TC66701001 TC69450 TC66700901 7. 8. 540E () 8RBA4-00E () 8RBT-00E TC688610 TC66701001 TC69450 TC66700901 7. 8. 70E () 8RBA4-400E () 8RBT-400E TC688610 TC66701001 TC69450 TC66700901 V14-T-60 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses).7 15RBA and 15RBA4 Type Standard Speed and 15RBT and 15RBT4 Time Lag Fuse Refill Units Voltage (kv) Nominal Maximum Ampere Standard Speed Time Lag Catalog Catalog Number Number Approximate Shipping Weight Lbs (kg) Performance Curves Standard Speed Minimum Melting Total Clearing Time Lag Minimum Melting 14 16 10E 15RBA-10E 1.1 (0.5) TC68801 TC66701401 14 16 15E 15RBA-15E 1.1 (0.5) TC68801 TC66701401 Total Clearing 14 16 0E 15RBA-0E 15RBT-0E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 5E 15RBA-5E 15RBT-5E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 0E 15RBA-0E 15RBT-0E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 40E 15RBA-40E 15RBT-40E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 50E 15RBA-50E 15RBT-50E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 65E 15RBA-65E 15RBT-65E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 80E 15RBA-80E 15RBT-80E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 100E 15RBA-100E 15RBT-100E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 15E 15RBA-15E 15RBT-15E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 150E 15RBA-150E 15RBT-150E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 175E 15RBA-175E 1.1 (0.5) TC68801 TC66701401 14 16 00E 15RBA-00E 15RBT-00E 1.1 (0.5) TC68801 TC66701401 TC688601 TC6670101 14 16 0.5 15RBA4-.5. (1.05) TC6886101 TC66701501 14 16 15RBA4-. (1.05) TC6886101 TC66701501 14 16 5E 15RBA4-5E. (1.05) TC6886101 TC66701501 14 16 7E 15RBA4-7E. (1.05) TC6886101 TC66701501 14 16 10E 15RBA4-10E. (1.05) TC6886101 TC66701501 14 16 15E 15RBA4-15E. (1.05) TC6886101 TC66701501 14 16 0E 15RBA4-0E 15RBT4-0E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 5E 15RBA4-5E 15RBT4-5E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 0E 15RBA4-0E 15RBT4-0E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 40E 15RBA4-40E 15RBT4-40E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 50E 15RBA4-50E 15RBT4-50E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 65E 15RBA4-65E 15RBT4-65E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 70E 15RBA4-80E 15RBT4-80E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 100E 15RBA4-100E 15RBT4-100E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 15E 15RBA4-15E 15RBT4-15E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 150E 15RBA4-150E 15RBT4-150E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 175E 15RBA4-175E. (1.05) TC6886101 TC66701501 14 16 00E 15RBA4-00E 15RBT4-00E. (1.05) TC6886101 TC66701501 TC6886501 TC6670101 14 16 50E 15RBA4-50E 15RBT4-50E. (1.05) TC6886101 TC66701501 TC694501 TC66701101 14 16 00E 15RBA4-00E 15RBT4-00E. (1.05) TC6886101 TC66701501 TC694501 TC66701101 14 16 400E 15RBA4-400E 15RBT4-400E. (1.05) TC6886101 TC66701501 TC694501 TC66701101 14 16 450E () 15RBA4-50E () 15RBT-50E TC688610 TC66701001 TC69450 TC66700901 14 16 540E () 15RBA4-00E () 15RBT-00E TC688610 TC66701001 TC69450 TC66700901 14 16 70E () 15RBA4-400E () 15RBT-400E TC688610 TC66701001 TC69450 TC66700901 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-61
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) 5RBA and 5RBA4 Type Standard Speed and 5RBT and 5RBT4 Time Lag Fuse Refill Units Voltage (kv) Nominal Maximum Ampere Standard Speed Time Lag Catalog Catalog Number Number Approximate Shipping Weight Lbs (kg) Performance Curves Standard Speed Minimum Melting Total Clearing Time Lag Minimum Melting 6 10E 5RBA-10E 1. (0.6) TC68801 TC66701401 6 15E 5RBA-15E 1. (0.6) TC68801 TC66701401 Total Clearing 6 0E 5RBA-0E 5RBT-0E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 5E 5RBA-5E 5RBT-5E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 0E 5RBA-0E 5RBT-0E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 40E 5RBA-40E 5RBT-40E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 50E 5RBA-50E 5RBT-50E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 65E 5RBA-65E 5RBT-65E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 80E 5RBA-80E 5RBT-80E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 100E 5RBA-100E 5RBT-100E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 15E 5RBA-15E 5RBT-15E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 150E 5RBA-150E 5RBT-150E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 175E 5RBA-175E 1. (0.6) TC68801 TC66701401 6 00E 5RBA-00E 5RBT-00E 1. (0.6) TC68801 TC66701401 TC688601 TC6670101 6 0.5 5RBA4-.5.7 (1.5) TC6886101 TC66701501 6 5RBA4-.7 (1.5) TC6886101 TC66701501 6 5E 5RBA4-5E.7 (1.5) TC6886101 TC66701501 6 7E 5RBA4-7E.7 (1.5) TC6886101 TC66701501 6 10E 5RBA4-10E.7 (1.5) TC6886101 TC66701501 6 15E 5RBA4-15E.7 (1.5) TC6886101 TC66701501 6 0E 5RBA4-0E 5RBT4-0E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 5E 5RBA4-5E 5RBT4-5E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 0E 5RBA4-0E 5RBT4-0E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 40E 5RBA4-40E 5RBT4-40E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 50E 5RBA4-50E 5RBT4-50E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 65E 5RBA4-65E 5RBT4-65E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 70E 5RBA4-80E 5RBT4-80E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 100E 5RBA4-100E 5RBT4-100E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 15E 5RBA4-15E 5RBT4-15E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 150E 5RBA4-150E 5RBT4-150E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 175E 5RBA4-175E.7 (1.5) TC6886101 TC66701501 6 00E 5RBA4-00E 5RBT4-00E.7 (1.5) TC6886101 TC66701501 TC6886501 TC6670101 6 50E 5RBA4-50E 5RBT4-50E.7 (1.5) TC6886101 TC66701501 TC694501 TC66701101 6 00E 5RBA4-00E 5RBT4-00E.7 (1.5) TC6886101 TC66701501 TC694501 TC66701101 6 450E () 5RBA4-50E () 5RBT-50E.7 (1.5) TC688610 TC66701001 TC69450 TC66700901 6 540E () 5RBA4-00E () 5RBT-00E TC688610 TC66701001 TC69450 TC66700901 V14-T-6 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses).7 8RBA4 and 8RBA4 Type Standard Speed and 8RBT and 8RBT4 Time Lag Fuse Refill Units Voltage (kv) Nominal Maximum Ampere Standard Speed Time Lag Catalog Catalog Number Number Approximate Shipping Weight Lbs (kg) Performance Curves Standard Speed Minimum Melting Total Clearing Time Lag Minimum Melting 5 8 10E 8RBA-10E 1.4 (0.65) TC68801 TC66701401 5 8 15E 8RBA-15E 1.4 (0.65) TC68801 TC66701401 Total Clearing 5 8 0E 8RBA-0E 8RBT-0E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 5E 8RBA-5E 8RBT-5E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 0E 8RBA-0E 8RBT-0E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 40E 8RBA-40E 8RBT-40E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 50E 8RBA-50E 8RBT-50E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 65E 8RBA-65E 8RBT-65E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 80E 8RBA-80E 8RBT-80E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 100E 8RBA-100E 8RBT-100E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 15E 8RBA-15E 8RBT-15E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 150E 8RBA-150E 8RBT-150E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 175E 8RBA-175E 1.4 (0.65) TC68801 TC66701401 5 8 00E 8RBA-00E 8RBT-00E 1.4 (0.65) TC68801 TC66701401 TC688601 TC6670101 5 8 0.5 8RBA4-.5.1 (1.4) TC6886101 TC66701501 5 8 8RBA4-.1 (1.4) TC6886101 TC66701501 5 8 5E 8RBA4-5E.1 (1.4) TC6886101 TC66701501 5 8 7E 8RBA4-7E.1 (1.4) TC6886101 TC66701501 5 8 10E 8RBA4-10E.1 (1.4) TC6886101 TC66701501 5 8 15E 8RBA4-15E.1 (1.4) TC6886101 TC66701501 5 8 0E 8RBA4-0E 8RBT4-0E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 5E 8RBA4-5E 8RBT4-5E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 0E 8RBA4-0E 8RBT4-0E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 40E 8RBA4-40E 8RBT4-40E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 50E 8RBA4-50E 8RBT4-50E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 65E 8RBA4-65E 8RBT4-65E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 70E 8RBA4-80E 8RBT4-80E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 100E 8RBA4-100E 8RBT4-100E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 15E 8RBA4-15E 8RBT4-15E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 150E 8RBA4-150E 8RBT4-150E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 175E 8RBA4-175E.1 (1.4) TC6886101 TC66701501 5 8 00E 8RBA4-00E 8RBT4-00E.1 (1.4) TC6886101 TC66701501 TC6886501 TC6670101 5 8 50E 8RBA4-50E 8RBT4-50E.1 (1.4) TC6886101 TC66701501 TC694501 TC66701101 5 8 00E 8RBA4-00E 8RBT4-00E.1 (1.4) TC6886101 TC66701501 TC694501 TC66701101 5 8 450E () 8RBA4-50E () 8RBT-50E TC688610 TC66701001 TC69450 TC66700901 5 8 540E () 8RBA4-00E () 8RBT-00E TC688610 TC66701001 TC69450 TC66700901 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-6
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) RBA Fuse Holders, Mountings and Live Parts Voltage (kv) Nominal Maximum Ampere LIWL (BIL) RBA Exhaust Control Devices Style Fuse Holder Catalog Number Mounting Porcelain Glass Polyester Live Parts Catalog Number Catalog Number Catalog Number Spring and Shunt Assembly Catalog Number 4.8 5.5 10E 00E 60 Disconnect non-indicating 8RBA-DH 5RBA-PDM 5RBA-GDM 15RBA-DL 8RBA-ISHNT Non-disconnect non-indicating 8RBA-NH 5RBA-PNM 5RBA-GNM 15RBA-NL 8RBA-ISHNT Disconnect indicating 8RBA-IDH 5RBA-PDM 5RBA-GDM 15RBA-DL 8RBA-ISHNT Non-disconnect indicating 8RBA-INH 5RBA-PNM 5RBA-GNM 15RBA-NL 8RBA-ISHNT Non-disconnect indicating bolt in 8RBA-INH-B 5RBA8-PNM 5RBA8-GNM 15RBA8-NL 8RBA-ISHNT 7. 8. 10E 00E 75 Disconnect non-indicating 8RBA-DH 8RBA-PDM 8RBA-GDM 15RBA-DL 8RBA-ISHNT Non-disconnect non-indicating 8RBA-NH 8RBA-PNM 8RBA-GNM 15RBA-NL 8RBA-ISHNT Disconnect indicating 8RBA-IDH 8RBA-PDM 8RBA-GDM 15RBA-DL 8RBA-ISHNT Non-disconnect indicating 8RBA-INH 8RBA-PNM 8RBA-GNM 15RBA-NL 8RBA-ISHNT Non-disconnect indicating bolt in 8RBA-INH-B 8RBA8-PNM 8RBA8-GNM 15RBA8-NL 8RBA-ISHNT 1.8 15.5 10E 00E 95 Disconnect non-indicating 15RBA-DH 14RBA-PDM 14RBA-GDM 15RBA-DL 15RBA-ISHNT Non-disconnect non-indicating 15RBA-NH 14RBA-PNM 14RBA-GNM 15RBA-NL 15RBA-ISHNT Disconnect indicating 15RBA-IDH 14RBA-PDM 14RBA-GDM 15RBA-DL 15RBA-ISHNT Non-disconnect indicating 15RBA-INH 14RBA-PNM 14RBA-GNM 15RBA-NL 15RBA-ISHNT Non-disconnect indicating bolt in 15RBA-INH-B 14RBA8-PNM 14RBA8-GNM 15RBA8-NL 15RBA-ISHNT 1.8 15.5 10E 00E 110 Disconnect non-indicating 15RBA-DH 15RBA-PDM 15RBA-DL 15RBA-ISHNT Non-disconnect non-indicating 15RBA-NH 15RBA-PNM 15RBA-NL 15RBA-ISHNT Disconnect indicating 15RBA-IDH 15RBA-PDM 15RBA-DL 15RBA-ISHNT Non-disconnect indicating 15RBA-INH 15RBA-PNM 15RBA-NL 15RBA-ISHNT Non-disconnect indicating bolt in 15RBA-INH-B 15RBA8-PNM 15RBA8-NL 15RBA-ISHNT 5.5 10E 00E 150 Disconnect non-indicating 5RBA-DH 5RBA-PDM 8RBA-DL 5RBA-ISHNT Non-disconnect non-indicating 5RBA-NH 5RBA-PNM 8RBA-NL 5RBA-ISHNT Disconnect indicating 5RBA-IDH 5RBA-PDM 8RBA-DL 5RBA-ISHNT Non-disconnect indicating 5RBA-INH 5RBA-PNM 8RBA-NL 5RBA-ISHNT Non-disconnect indicating bolt in 5RBA-INH-B 5RBA8-PNM 8RBA8-NL 5RBA-ISHNT 4.5 8 10E 00E 150 Disconnect non-indicating 8RBA-DH 8RBA-PDM 8RBA-DL 8RBA-ISHNT Non-disconnect non-indicating 8RBA-NH 8RBA-PNM 8RBA-NL 8RBA-ISHNT Disconnect indicating 8RBA-IDH 8RBA-PDM 8RBA-DL 8RBA-ISHNT Non-disconnect indicating 8RBA-INH 8RBA-PNM 8RBA-NL 8RBA-ISHNT Non-disconnect indicating bolt in 8RBA-INH-B 8RBA8-PNM 8RBA8-NL 8RBA-ISHNT Voltage (kv) Nominal Maximum Ampere LIWL (BIL) Style Exhaust Control Devices Catalog Number 4.8 1.8 5.5 15.5 10E 00E Condenser (1 pack) RBA-COND-1 Condenser ( pack) RBA-COND Filter (1 pack) RBA-FLTR-1 Filter ( pack) RBA-FLTR 4.5 5.5 8 10E 00E Condenser (1 pack) RBA-COND-1 Condenser ( pack) RBA-COND Filter (1 pack) RBA-FLTR-1 Filter ( pack) RBA-FLTR V14-T-64 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses).7 RBA4 Fuse Holders, Mountings and Live Parts Voltage (kv) Nominal Maximum Ampere LIWL (BIL) Style Fuse Holder Catalog Number Mounting Porcelain Glass Polyester Live Parts Catalog Number Catalog Number Catalog Number Spring and Shunt Assembly Catalog Number 4.8 5.5 0.5 400E 60 Disconnect non-indicating 8RBA4-DH 5RBA4-PDM 5RBA4-GDM 15RBA4-DL 8RBA4-ISHNT Non-disconnect non-indicating 8RBA4-NH 5RBA4-PNM 5RBA4-GNM 15RBA4-NL 8RBA4-ISHNT Disconnect indicating 8RBA4-IDH 5RBA4-PDM 5RBA4-GDM 15RBA4-DL 8RBA4-ISHNT Non-disconnect indicating 8RBA4-INH 5RBA4-PNM 5RBA4-GNM 15RBA4-NL 8RBA4-ISHNT Non-disconnect indicating bolt in 8RBA4-INH-B 5RBA8-PNM 5RBA8-GNM 15RBA8-NL 8RBA4-ISHNT 7. 8. 0.5 400E 75 Disconnect non-indicating 8RBA4-DH 8RBA4-PDM 8RBA4-GDM 15RBA4-DL 8RBA4-ISHNT Non-disconnect non-indicating 8RBA4-NH 8RBA4-PNM 8RBA4-GNM 15RBA4-NL 8RBA4-ISHNT Disconnect indicating 8RBA4-IDH 8RBA4-PDM 8RBA4-GDM 15RBA4-DL 8RBA4-ISHNT Non-disconnect indicating 8RBA4-INH 8RBA4-PNM 8RBA4-GNM 15RBA4-NL 8RBA4-ISHNT Non-disconnect indicating bolt in 8RBA4-INH-B 8RBA8-PNM 8RBA8-GNM 15RBA8-NL 8RBA4-ISHNT 1.8 15.5 0.5 400E 95 Disconnect non-indicating 15RBA4-DH 14RBA4-PDM 14RBA4-GDM 15RBA4-DL 15RBA4-ISHNT Non-disconnect non-indicating 15RBA4-NH 14RBA4-PNM 14RBA4-GNM 15RBA4-NL 15RBA4-ISHNT Disconnect indicating 15RBA4-IDH 14RBA4-PDM 14RBA4-GDM 15RBA4-DL 15RBA4-ISHNT Non-disconnect indicating 15RBA4-INH 14RBA4-PNM 14RBA4-GNM 15RBA4-NL 15RBA4-ISHNT Non-disconnect indicating bolt in 15RBA4-INH-B 14RBA8-PNM 14RBA8-GNM 15RBA8-NL 15RBA4-ISHNT 1.8 15.5 0.5 400E 110 Disconnect non-indicating 15RBA4-DH 15RBA4-PDM 15RBA4-DL 15RBA4-ISHNT Non-disconnect non-indicating 15RBA4-NH 15RBA4-PNM 15RBA4-NL 15RBA4-ISHNT Disconnect indicating 15RBA4-IDH 15RBA4-PDM 15RBA4-DL 15RBA4-ISHNT Non-disconnect indicating 15RBA4-INH 15RBA4-PNM 15RBA4-NL 15RBA4-ISHNT Non-disconnect indicating bolt in 15RBA4-INH-B 15RBA8-PNM 15RBA8-NL 15RBA4-ISHNT 5.5 0.5 00E 150 Disconnect non-indicating 5RBA4-DH 5RBA4-PDM 8RBA4-DL 5RBA4-ISHNT Non-disconnect non-indicating 5RBA4-NH 5RBA4-PNM 8RBA4-NL 5RBA4-ISHNT Disconnect indicating 5RBA4-IDH 5RBA4-PDM 8RBA4-DL 5RBA4-ISHNT Non-disconnect indicating 5RBA4-INH 5RBA4-PNM 8RBA4-NL 5RBA4-ISHNT Non-disconnect indicating bolt in 5RBA4-INH-B 5RBA8-PNM 8RBA8-NL 5RBA4-ISHNT 4.5 8 0.5 00E 150 Disconnect non-indicating 8RBA4-DH 8RBA4-PDM 8RBA4-DL 8RBA4-ISHNT Non-disconnect non-indicating 8RBA4-NH 8RBA4-PNM 8RBA4-NL 8RBA4-ISHNT Disconnect indicating 8RBA4-IDH 8RBA4-PDM 8RBA4-DL 8RBA4-ISHNT Non-disconnect indicating 8RBA4-INH 8RBA4-PNM 8RBA4-NL 8RBA4-ISHNT Non-disconnect indicating bolt in 8RBA4-INH-B 8RBA8-PNM 8RBA8-NL 8RBA4-ISHNT Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-65
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) RBA8 Fuse Holders, Mountings and Live Parts Voltage (kv) Nominal Maximum Ampere LIWL (BIL) Style RBA4 and RBA8 Exhaust Control Devices Fuse Holder Catalog Number Mounting Porcelain Glass Polyester Live Parts Catalog Number Catalog Number Catalog Number Spring and Shunt Assembly Catalog Number 4.8 5.5 450E 70E 60 Non-disconnect indicating bolt in 8RBA8-INH 5RBA8-PNM 5RBA8-GNM 15RBA8-NL 8RBA4-ISHNT 7. 8. 450E 70E 75 Non-disconnect indicating bolt in 8RBA8-INH 8RBA8-PNM 8RBA8-GNM 15RBA8-NL 8RBA4-ISHNT 1.8 15.5 450E 70E 95 Non-disconnect indicating bolt in 15RBA8-INH 14RBA8-PNM 14RBA8-GNM 15RBA8-NL 15RBA4-ISHNT 1.8 15.5 450E 70E 110 Non-disconnect indicating bolt in 15RBA8-INH 15RBA8-PNM 15RBA8-NL 15RBA4-ISHNT 5.5 450E 754E 150 Non-disconnect indicating bolt in 5RBA8-INH 5RBA8-PNM 8RBA8-NL 15RBA4-ISHNT 4.5 8 450E 754E 150 Non-disconnect indicating bolt in 8RBA8-INH 8RBA8-PNM 8RBA8-NL 8RBA4-ISHNT Voltage (kv) Nominal Maximum Ampere LIWL (BIL) Style Exhaust Control Devices Catalog Number 4.8 1.8 5.5 15.5 0.5 70E Condenser (1 pack) RBA4-COND-1 Condenser ( pack) RBA4-COND Filter (1 pack) RBA4-FLTR-1 Filter ( pack) RBA4-FLTR 4.5 5.5 8 0.5 540E Condenser (1 pack) RBA4-COND-1 Condenser ( pack) RBA4-COND Filter (1 pack) RBA4-FLTR-1 Filter ( pack) RBA4-FLTR 1. 14.4 0.5 70E High capacity filter ( pack) RBA4-FLTR-HC-1 High capacity filter (1 pack) RBA4-FLTR-HC V14-T-66 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses).7 RDB Outdoor Dropout Fuse Holders, Mounting and Live Parts Ampere LIWL (BIL) Style Mounting Live Parts Spring and Fuse Holder Vertical Underhung Vertical Underhung Shunt Assy 10E 00E 95 Dropout 8RDB-DH 8RDB-VM 8RDB-UM RDB-VL RDB-UL 8RDB-SHNT 110 Dropout 8RDB-DH 8RDB-HVM 8RDB-HUM RDB-VL RDB-UL 8RDB-SHNT 10E 00E 110 Dropout 15RDB-DH 15RDB-VM 15RDB-UM RDB-VL RDB-UL 15RDB-SHNT 150 Dropout 15RDB-DH 15RDB-HVM 15RDB-HUM RDB-VL RDB-UL 15RDB-SHNT 10E 00E 150 Dropout 5RDB-DH 5RDB-VM 15RDB-UM RDB-VL RDB-UL 5RDB-SHNT 00 Dropout 5RDB-DH 5RDB-HVM 5RDB-HUM RDB-VL RDB-UL 5RDB-SHNT 10E 00E 00 Dropout 8RDB-DH 8RDB-VM 8RDB-UM RDB-VL RDB-UL 8RDB-SHNT 50 Dropout 8RDB-DH 8RDB-HVM 8RDB-HUM RDB-VL RDB-UL 8RDB-SHNT RDB4 Outdoor Dropout Fuse Holders, Mounting and Live Parts Ampere LIWL (BIL) Style Mounting Live Parts Spring and Fuse Holder Vertical Underhung Vertical Underhung Shunt Assy 0.5 400E 95 Dropout 8RDB4-DH 8RDB4-VM 8RDB4-UM RDB4-VL RDB4-UL 8RDB4-SHNT 110 Dropout 8RDB4-DH 8RDB4-HVM 8RDB4-HUM RDB4-VL RDB4-UL 8RDB4-SHNT 0.5 400E 110 Dropout 15RDB4-DH 15RDB4-VM 15RDB4-UM RDB4-VL RDB4-UL 15RDB4-SHNT 150 Dropout 15RDB4-DH 15RDB4-HVM 15RDB4-HUM RDB4-VL RDB4-UL 15RDB4-SHNT 0.5 00E 150 Dropout 5RDB4-DH 5RDB4-VM 5RDB4-UM RDB4-VL RDB4-UL 5RDB4-SHNT 00 Dropout 5RDB4-DH 5RDB4-HVM 5RDB4-HUM RDB4-VL RDB4-UL 5RDB4-SHNT 0.5 00E 00 Dropout 8RDB4-DH 8RDB4-VM 8RDB4-UM RDB4-VL RDB4-UL 8RDB4-SHNT 50 Dropout 8RDB4-DH 8RDB4-HVM 8RDB4-HUM RDB4-VL RDB4-UL 8RDB4-SHNT RDB8 Outdoor Dropout Fuse Holders, Mounting and Live Parts Ampere LIWL (BIL) Style Mounting Live Parts Spring and Fuse Holder Vertical Underhung Vertical Underhung Shunt Assy 450E 70E 95 Dropout 8RDB4-DH 8RDB8-VM 8RDB8-UM RDB8-VL RDB8-UL 8RDB4-SHNT 110 Dropout 8RDB4-DH 8RDB8-HVM 8RDB8-HUM RDB8-VL RDB8-UL 8RDB4-SHNT 450E 70E 110 Dropout 15RDB4-DH 15RDB8-VM 15RDB8-UM RDB8-VL RDB8-UL 15RDB4-SHNT 150 Dropout 15RDB4-DH 15RDB8-HVM 15RDB8-HUM RDB8-VL RDB8-UL 15RDB4-SHNT 450E 540E 150 Dropout 5RDB4-DH 5RDB8-VM 5RDB8-UM RDB8-VL RDB8-UL 5RDB4-SHNT 00 Dropout 5RDB4-DH 5RDB8-HVM 5RDB8-HUM RDB8-VL RDB8-UL 5RDB4-SHNT 450E 540E 00 Dropout 8RDB4-DH 8RDB8-VM 8RDB8-UM RDB8-VL RDB8-UL 8RDB4-SHNT 50 Dropout 8RDB4-DH 8RDB8-HVM 8RDB8-HUM RDB8-VL RDB8-UL 8RDB4-SHNT Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-67
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) Dimensions Approximate Dimensions in Inches (mm) RBA Fuse Mountings RBA00, RBA400 Disconnect Mounting 4.8 to 4.5 kv 0.75 (19.0) 0.75 (19.0) 0.75 (19.0) 0.6 (15.7) Dia. Holes (4) 0.56 (14.) Dia. Holes (4) B 1.75 (44.5) 0.88 (.4) A 0.75 (19.0).56 (90.4).56 (90.4) 1.75 (44.4) A-0 Insulators Used on 4.8 to 14.4 kv A-0 Insulators Used on.0 and 4.5 kv E F H C D K G L I M W Minimum Clearance to Ground 45º Opening 0.61 (15.5) J R Fuse Refill Fuse Holder P N V14-T-68 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses).7 Approximate Dimensions in Inches (mm) RBA00, RBA400 Catalog kv Number BIL A B C D E F G H I J K L M N P R 5RBA 60.6 (574.5) 8RBA 75.6 (574.5) 14RBA 95.6 (574.5) 15RBA 110.6 (574.5) 5RBA 150.88 (860.6) 8RBA 150.88 (860.6) 5RBA4 60.5 (565.1) 8RBA4 75.5 (565.1) 14RBA4 95.5 (565.1) 15RBA4 110.5 (565.1) 5RBA4 150.81 (858.8) 8RBA4 150.81 (858.8) 7.00 (177.8) 7.00 (177.8) 7.00 (177.8) 7.00 (177.8) 7.00 (177.8) 7.00 (177.8) 7.00 (177.8) 7.00 (177.8) 7.00 (177.8) 7.00 (177.8) 8.00 (0.) 8.00 (0.) 7.50 (190.5) 10.00 (54.0) 10.00 (54.0) 11.50 (9.1) 1.00 (04.8) 1.00 (04.8) 7.50 (190.5) 10.00 (54.0) 10.00 (54.0) 11.50 (9.1) 1.50 (4.9) 1.50 (4.9).50 (89.9) 6.00 (15.4) 6.00 (15.4) 7.50 (190.5) 10.50 (54.0) 10.50 (54.0).50 (89.9) 6.00 (15.4) 6.00 (15.4) 7.50 (190.5) 10.50 (54.0) 10.50 (54.0) Note Phase-to-phase center spacing, without barriers. 5.87 (149.1) 5.87 (149.1).6 (66.5).6 (66.5).50 (6.5).50 (6.5) 5.94 (150.9) 5.94 (150.9).56 (65.0).56 (65.0.50 (6.5).50 (6.5) 14.5 (6.0) 14.5 (6.0) 17.6 (447.5) 17.6 (447.5).5 (565.1) 9.5 (74.9) 1.81 (50.7) 1.81 (50.7) 17.19 (46.6) 17.19 (46.6) 1.81 (554.0) 8.81 (71.8) 7.19 (690.6) 9.69 (754.1).1 (815.8).6 (85.9) 7.69 (957.).4 (84.8) 6.4 (161.0) 6.4 (161.0) 7.84 (199.1) 11.71 (97.4) 4.6 11.71 (108.5) (97.4) 7.40 (696.0) 9.90 (759.5).81 (8.4) 4.1 (871.5).0 (77.0) 5.5 (140.5) 5.5 (140.5) 7.0 (178.6) 9.56 9.0 (1004.8) (9.4) 44.50 9.0 (110.) (9.4) 18.69 (474.7) 18.69 (474.7).06 (560.).06 (560.) 6.69 (677.9).69 (855.7) 19.69 (500.1) 19.69 (500.1).69 (601.7).69 (601.7) 7.69 (70.) 7.69 (70.) 18.81 (477.7) 18.81 (477.7).19 (56.6).19 (56.6) 6.81 (681.0).81 (858.7) 0.00 (508.0) 0.00 (508.0).8 (59.9).8 (59.9) 8.00 (711.) 5.00 (889.0) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 9.5 (4.9) 1.56 (9.6) 1.56 (9.6) 1.56 (9.6) 1.56 (9.6) 1.56 (9.6) 1.56 (9.6).6 (9.6).6 (9.6).6 (9.6).6 (9.6).6 (9.6).6 (9.6) 10.1 (57.0) 10.1 (57.0) 10.1 (57.0) 10.1 (57.0) 10.1 (57.0) 10.1 (57.0) 11.75 (98.4) 11.75 (98.4) 11.75 (98.4) 11.75 (98.4) 11.75 (98.4) 11.75 (98.4) 1.64 (41.7) 1.64 (41.7) 1.64 (41.7) 1.64 (41.7) 1.64 (41.7) 1.64 (41.7).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1) 1.50 (8.1) 1.50 (8.1) 1.50 (8.1) 1.50 (8.1) 1.50 (8.1) 1.50 (8.1).0 (55.9).0 (55.9).0 (55.9).0 (55.9).0 (55.9).0 (55.9) 7.50 (190.5) 7.50 (190.5) 8.75 (.) 8.75 (.) 10.50 (66.7) 1.1 (.) 7.6 (19.5) 7.6 (19.5) 8.88 (5.6) 8.88 (5.6) 11.8 (89.1) 1.6 (56.0) W Recommended With With Phase Condenser Discharge Spacing.00 (76.) 4.00 (101.6) 6.00 (15.4) 6.00 (15.4) 8.50 (15.9) 1.00 (04.8).00 (76.) 4.00 (101.6) 6.00 (15.4) 6.00 (15.4) 8.50 (15.9) 1.00 (04.8) 7.50 (190.5) 8.50 (15.9) 11.50 (9.1) 11.50 (9.1) 15.00 (81.0) 19.50 (495.) 7.50 (190.5) 8.50 (15.9) 11.50 (9.1) 11.50 (9.1) 15.00 (81.0) 19.50 (495) 11.50 (9.1) 1.00 (0.) 14.50 (68.) 16.00 (406.4) 0.00 (508.0) 5.00 (65.0) 11.75 (9.1) 1.5 (6.5) 14.75 (74.6) 16.5 (41.7) 0.5 (514.4) 5.5 (641.4) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-69
.7 Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses) Approximate Dimensions in Inches (mm) RBA00, RBA400 and RBA800 (Piggyback Type) Non-Disconnect Mounting 4.8 to 4.5 kv 0.6 (15.7) 1.75 (44.4) 1.75 (44.4) H 6.00 (15.4) 0.6 (15.7) 4.5 (108.0) 1.00 (5.4) E 1.00 (5.4) 0.44 (11.) Dia. Holes (8) 5.87 (149.1) A G 5.87 (149.1) D B C W Minimum Clearance to Ground K F Fuse Holder RBA00, RBA400 R 6.1 (155.4) D A 0.41 (11.) Dia. Holes () G 6.1 (155.4) B F C W Minimum Clearance to Ground R J Fuse Holder RBA800 0.66 (16.8) 0.41 (11.) Dia. Holes () V14-T-70 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Expulsion Fuses RBA/RDB Type Fuses (Including Superseded BA Fuses).7 Approximate Dimensions in Inches (mm) RBA00, RBA400 and RBA800 (Piggyback Type) Catalog Number kv BIL A B C D E F G H J K R W With Condenser With Discharge Recommended Phase Spacing 5RBA 60 15.6 (96.7) 4.6 (117.) 11.4 (90.) 8.6 (18.9) 15.6 (96.7) 7.50 (190.5) 1. (.5) 7.50 (190.5) 18.5 (46.5) 1.64 (41.7).00 (76.) 7.50 (190.5) 11.16 (8.5) 8RBA 75 15.6 (96.7) 7.1 (180.8) 1.9 (5.8) 8.6 (18.9) 15.6 (96.7) 7.50 (190.5) 1. (.5) 7.50 (190.5) 18.5 (46.5) 1.64 (41.7) 4.00 (101.6) 8.50 (15.9) 1.56 (19.0) 14RBA 95 19.00 (48.6) 7.1 (180.8) 1.9 (5.8) 8.6 (18.9) 19.00 (48.6) 7.50 (190.5) 1. (.5) 7.50 (190.5) 1.6 (549.4) 1.64 (41.7) 6.00 (15.4) 11.50 (9.1) 1.06 (1.7) 15RBA 110 19.00 (48.6) 5RBA 150 6.4 (671.) 8RBA 150.4 (849.1) 5RBA4 60 16.56 (40.6) 8RBA4 75 16.56 (40.6) 14RBA4 95 19.94 (506.5) 15RBA4 110 19.94 (506.5) 5RBA4 150 7.7 (695.) 8RBA4 150 4.7 (87.0) 5RBA8 60 16.1 (414.) 8RBA8 75 16.1 (414.) 14RBA8 95 19.81 (50.) 15RBA8 110 19.81 (50.) 5RBA8 150 4.50 (6.) 8RBA8 150 1.50 (800.1) 8.6 (18.9) 1.1 (07.8) 1.1 (07.8) 4.6 (117.) 7.1 (180.8) 7.1 (180.8) 8.6 (18.9) 1.1 (07.8) 1.1 (07.8) 4.50 (114.) 7.00 (177.8) 7.00 (177.8) 8.50 (15.9) 11.50 (9.1) 11.50 (9.1) 15.4 (91.9) 18.9 (480.8) 18.9 (480.8) 1.1 (1.7) 14.81 (76.) 14.81 (76.) 16.1 (414.) 19.81 (50.) 19.81 (50.) 1.85 (6.4) 15.5 (89.9) 15.5 (89.9) 16.85 (48.0) 19.85 (504.) 19.85 (504.) 8.6 (18.9) 7.5 (184.1) 7.5 (184.1) 8.75 (.) 8.75 (.) 8.75 (.) 8.75 (.) 7.7 (187.) 7.7 (187.) 9.1 (6.5) 9.1 (6.5) 9.1 (6.5) 9.1 (6.5) 9.1 (6.5) 9.1 (6.5) 19.00 (48.6) 9.4 (747.5) 6.4 (95.) 16.56 (40.6) 16.56 (40.6) 19.94 (506.5) 19.94 (506.5) 0.7 (771.4) 7.7 (949.) 17.56 (446.0) 17.56 (446.0) 1.06 (54.9) 1.06 (54.9) 7.50 (698.5) 4.50 (876.) 7.50 (190.5) 8.50 (15.9) 8.50 (15.9) 7.50 (190.5) 7.50 (190.5) 7.50 (190.5) 7.50 (190.5) 8.50 (15.9) 8.50 (15.9).50 (88.9) 6.00 (15.4) 6.00 (15.4) 7.50 (190.5) 10.50 (66.7) 10.50 (66.7) 1. (.5).50 (6.5).50 (6.5) 1. (.5) 1. (.5) 1. (.5).50 (6.5) 1. (.5).50 (6.5) 1.6 (41.1) 1.6 (41.1) 1.6 (41.1) 1.6 (41.1).50 (6.5).50 (6.5) 7.50 (190.5) 8.50 (15.9) 8.50 (15.9) 7.50 (190.5) 7.50 (190.5) 7.50 (190.5) 7.50 (190.5) 8.50 (15.9) 8.50 (15.9).50 (88.9) 6.00 (15.4) 6.00 (15.4) 7.50 (190.5) 10.50 (66.7) 10.50 (66.7) 1.6 (549.4) 6.5 (666.7).5 (844.5) 19.5 (495.8) 19.5 (495.8).90 (581.7).90 (581.7).90 (581.7) 4.5 (876.8) 16.1 (414.) 16.1 (414.) 19.81 (50.) 19.81 (50.) 4.50 (6.) 1.50 (800.0) 1.64 (41.7) 1.64 (41.7) 1.64 (41.7).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1).17 (55.1) 6.00 (15.4) 8.50 (15.9) 1.00 (04.8).00 (76.) 4.00 (101.6) 6.00 (15.4) 6.00 (15.4) 8.50 (15.9) 1.00 (04.8).00 (76.) 4.00 (101.6) 6.00 (15.4) 6.00 (15.4) 6.00 (15.4) 1.00 (04.8) 11.50 (9.1) 15.00 (81.0) 19.50 (495.) 7.50 (190.5) 8.50 (15.9) 11.50 (9.1) 11.50 (9.1) 15.00 (81.0) 19.50 (495.) 7.50 (190.5) 8.50 (15.9) 11.50 (9.1) 11.50 (9.1) 15.00 (81.0) 19.50 (495.) 15.56 (95.) 19.56 (496.8) 4.56 (6.8) 11.16 (8.5) 1.56 (19.0) 1.06 (1.7) 15.56 (95.) 19.56 (496.8) 4.56 (6.8) 11.00 (79.4) 1.50 (17.5) 14.00 (55.6) 15.50 (9.) 19.50 (495) 4.50 (6.) Note Phase-to-phase center spacing, without barriers. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-71
Limiting Fuses Eaton Limiting Fuses.1 Product Overview Product Description........................................ Fuse Selection Fuse Selection........................................... Limiting Applications................................. Applications Applications..............................................4 CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.........5 CLPT and NCLPT Type Fuses CLPT and NCLPT Type Fuses.................................6 ACLS, BCLS, CLS, HCLS and NCLS Type Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses..................7 CLT Type Fuses CLT Type Fuses...........................................8 CX, CXI and CXN Type Fuses CX, CXI and CXN Type Fuses.................................9 DSL, MDSL and NPL Type Low Voltage Limiters DSL, MDSL and NPL Type Low Voltage Limiters.......... V14-T- V14-T-5 V14-T-6 V14-T-11 V14-T-19 V14-T-4 V14-T-50 V14-T-65 V14-T-67 V14-T-76 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-1
.1 Limiting Fuses Product Overview Limiting Fuses Contents Description Construction.............................. Interruption and Operation................... Application............................... Mountings............................... Page V14-T- V14-T- V14-T-4 V14-T-4 Product Description Introduction Eaton s medium voltage fuses provide diverse characteristics that allow them to be used in any application within their practical range. This difference is due to the offering of both expulsion and current-limiting fuses. Expulsion and current-limiting fuses employ different interrupting techniques that cause the criteria with which they are employed to differ. This requires that a different set of questions should be answered when applying expulsion and current-limiting fuses. For this reason, and to avoid confusion, this application data applies only to current-limiting fuses. For information on the application of expulsion fuses see Eaton s Expulsion Fuse Product Focus. Available Types ANSI/IEEE fuse standards define three types of current-limiting fuses: back-up fuses, generalpurpose fuses and full-range fuses. It is important for the user to have an understanding of these definitions to ensure proper application of the fuse. A backup current-limiting fuse is able to safely interrupt all values of fault current from the rated minimum interrupting current up to the rated maximum interrupting current of the fuse. Although only backup current limiting fuses make a specific reference to a rated minimum interrupting current, generalpurpose and full-range define a rated minimum interrupting current in different terms. The rated minimum interrupting current of a general-purpose fuse is the current that causes the fuse to operate in one hour, and the rated minimum interrupting current of a fullrange fuse is the minimum value of current that will melt the fusible element(s) under specified conditions. Generally, Eaton s backup current-limiting fuses are the R-rated range, which have a rated minimum interrupting current equivalent to the 100 second current on the minimum melting timecurrent curve. This point is not necessarily the limit of low fault performance, merely the required limit of low fault performance, in line with the normal application practices for this type of fuse, which is used for high fault protection of medium voltage motor starters in conjunction with relays and overload contactors. Eaton s R-rated backup fuses may be thermally damaged or may not operate correctly if subjected to overload currents greater than those shown on the safe overload curves and the rated minimum interrupting current for long times. A general-purpose currentlimiting fuse is able to safely interrupt all values of fault current from the current that causes the fuse to operate in one hour or more up to the rated maximum Interrupting current of the fuse. The one hour melting time is with the fuse in a conventional mount, and in a 5 C ambient. Other mountings or ambient conditions may cause the fuse to melt earlier, but this does not alter this rated minimum interrupting current. Eaton s general purpose current-limiting fuses are used to protect circuits feeding transformers and feeders, where there is downstream protection that will operate before the medium voltage generalpurpose fuse is affected by a long term overload. See application notes on feeder and transformer protection for details. Eaton s E-rated general-purpose fuses may be thermally damaged or may not operate correctly if subjected to overload currents greater than those shown on the safe overload curves and the indicated one hour interrupting current for long times. A full-range current-limiting fuse is able to safely interrupt all values of fault from the minimum value of current that will melt the fusible element up to the rated maximum interrupting current under specified conditions. Eaton s full range currentlimiting fuses are used to protect circuits feeding transformers and feeders, where there may not be any effective downstream protection. V14-T- Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses Product Overview.1 Construction -limiting fuses are sometimes referred to as silver-sand fuses. This reference comes from the fact that calibrated pure silver current responsive elements are surrounded by pure silica or quartz sand with controlled grain size that acts as a cooling and absorbing agent when the fuse interrupts a fault. Interruption of a fault by a current-limiting fuse is quiet and completely self contained. In general, pure silver is used for the elements in Eaton current limiting fuses because it provides the ideal mix of physical characteristics. With uniquely designed element constructions for each class, these current limiting fuses offer the highest available ratings in the smallest barrel sizes. All components are housed in a fiberglass reinforced resin tube with plated copper contact caps that are magna-formed onto the housing for optimum strength and filled with high purity silica sand. Blown fuse indication is provided by either a striker pin or a pop-up button. A durable nameplate label provides rating and manufacturer information. Interruption and Operation limiting fuses operate in two modes, depending on the magnitude of the fault current. The first is operation in the overload mode where the fault current is below the threshold current for the fuse. In this mode, the fuse does not operate during the first major half cycle, and does not limit the magnitude of the fault current. The second is operation in the short-circuit or currentlimiting mode where the current is above the threshold current for the fuse. In this mode, the fuse does operate during the first major half cycle, and does limit the magnitude of the fault current. There is a small overlap zone between the overload and short-circuit modes of operation, where the fuse may or may not act in the current-limiting mode. The performance of the fuse in this zone is dependent on circuit conditions such as the power-factor of the circuit, and the point on wave of the inception of the fault. The threshold value for any particular fuse can be read off the peak let-through (cut-off current) chart. The threshold current is the value of available current in amperes on the horizontal axis that corresponds to the intercept of the individual fuse line and the peak asymmetrical available diagonal line. In the overload mode, the fuse does not limit the peak value of the current, as in this mode, it carries one or more full half cycles of current before the current responsive element(s) melt open. After the current responsive element(s) melt open, they will arc until they have burnt back far enough to interrupt the overload current and withstand the circuit recovery voltage. In the short-circuit mode, the fuse element(s) melt almost instantaneously, producing a number of series arcs at the neck points on the elements. The interaction of these series arcs and the constraining medium (typically sand) introduces a rapidly rising resistance into the fault circuit that limits the peak value of the current to a value considerably less than the peak value of the prospective current wave. The stored energy in the circuit causes current to continue to flow through the fuse until it is dissipated and this produces a high arc voltage across the fuse. The fuse changes a high current low power factor circuit into a lower current, higher power factor circuit, and as a result, the current is forced to near zero well before the natural current zero of the circuit. Because the current is forced to zero before the natural current zero of the circuit, the effects of transient recovery voltage of the circuit are reduced because the current and voltage are nearly in phase. limiting fuses are thus relatively insensitive to the transient recovery voltage. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-
.1 Limiting Fuses Product Overview CL Fuse Operation Element melts forming multiple series arcs at element necks Heat from arcing melts the sand into a glass-like structure referred to as fulgurite Fulgurite absorbs the heat from the arcs but also encloses them, depressing current peak value Application Eaton offers a wide range of interrupting ratings in single barrel designs with ratings extended to higher currents in double, triple and quad barrel designs. E-rated fuses are available in both long (CLE) and short (HLE) clip center designs. BHLE and HCL versions are available for bolt-in and clamp in mounting arrangements. R-rated motor starter fuses for standard clip mounting (CLS), are also available with an integral hookeye for Eaton s Ampgard starter assemblies (ACLS) or bolt-in style mounting (BCLS). CLPT fuses are available for potential transformer protection in several different diameters. CX and CLT fuses are ideally suited for canister applications and available in a wide range of ratings. Low voltage current limiters, MDSL for Magnum and DSL breakers and NPL for network protectors, which are not covered in this catalog, are also available in a variety of current ratings. Mountings Eaton s current-limiting fuses are available in industrystandard mounting sizes. Disconnect and nondisconnect mountings are available for most fuse case sizes. Mountings include the base, porcelain or glass polyester insulators and live parts. Live parts, fuse clips and fuse end fittings are also available separately. All Eaton s current-limiting fuses and mountings are easy to install and operate. Arc is extinguished as current is forced to zero Because of the limitation of the peak value of the current, and the early extinction of the current, the energy let through by the fuse in the short-circuit mode is considerably lower then the energy that would have been let through by the unaltered prospective current wave. This significantly reduces energy let through and can protect the circuit from mechanical and thermal damage that would be caused in the absence of the current-limiting fuse. Eaton s current-limiting fuses produce arc voltages that are within the limits specified in the applicable C7 standards. The arc voltage is seen on the supply side of the fuse, but is not normally seen on the load-side of the fuse. V14-T-4 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses Fuse Selection. Limiting Fuses Contents Description Fuse Selection Limiting Applications................. Voltage.......................... Interrupting....................... Continuous................ Fuse Enclosure Packages................. Parallel Fuses.......................... Coordination........................... Interchangeability....................... Specific Applications..................... Let-Through..................... Fuses and Lightning Arresters............. Page V14-T-6 V14-T-6 V14-T-6 V14-T-7 V14-T-8 V14-T-8 V14-T-8 V14-T-9 V14-T-9 V14-T-10 V14-T-10 Fuse Selection There are four major considerations involved in the selection of a current limiting fuse. The first three considerations are the voltage rating, the interrupting rating and the continuous current rating of the fuse. Proper attention should be given to each of these considerations as improper application in any one area may result in the fuse failing to perform its intended function. The fourth consideration is coordination with line and load side protective equipment that is needed to give selectivity of outage and to prevent premature fuse operation. Each of the four areas is discussed here individually. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-5
. Limiting Fuses Fuse Selection Limiting Applications Voltage The rated maximum power frequency voltage of a current-limiting fuse is the maximum rms value of circuit voltage at which the fuse has been demonstrated to be able to operate with specified circuit fault conditions. A fuse must not be applied at any location where the circuit voltage exceeds the rated maximum power frequency voltage of the fuse. Voltage ratings of particular fuse types are listed in the appropriate fuse data sheets. The first rule regarding fuse application is that the fuse selected must have a maximum design voltage rating equal to or greater than the maximum power frequency voltage that will be available in the system in which the fuse is installed under all possible conditions. In most cases this means the maximum design voltage of the fuse must equal or exceed the system maximum line-to-line voltage. The only exception to this rule occurs in distribution systems when fusing single-phase loads connected from line-toneutral on a four-wire effectively grounded system. Here the fuse maximum design voltage need only exceed the system maximum line-to-neutral voltage providing it is impossible under all fault conditions for the fuse to experience the full line-to-line voltage. When only one phase of a four-wire effectively grounded system is extended beyond the fuse to supply a single-phase load connected from phase-toneutral, it is acceptable to have the fuse maximum design voltage equal or exceed the system maximum line-to-neutral voltage. It is good practice that if more than one phase of the system is extended beyond the fuse location, the fuse maximum design voltage should equal or exceed the system maximum line-to-line voltage regardless of how the threephase system is grounded on the source side of the fuse or how the transformers or loads are connected on the load side of the fuse. It is a common practice, however, to choose to fuse wye grounded wye transformers on the primary side with fuses with a voltage rating that only exceeds the system line-to-neutral voltage. In most cases this presents no problems but the user should be aware of the remote possibility of a secondary phase-to-phase ungrounded fault that could impose full line-to-line voltage across the fuse. The interrupting action of current limiting fuses produces arc voltages that can exceed the system voltage. Care must be taken to ensure that these arc voltages do not exceed the insulation level of the system. If the fuse voltage rating is not permitted to exceed 140 percent of the system voltage, the arc voltages will generally not create problems. This 140 percent limit on the voltage rating over system voltage does not restrict the use of a higher rated fuse if the system has a high enough insulation level to withstand the short time application of the arc voltage. Eaton s current limiting fuses are designed so that the arc voltage peak at rated interrupting current is less than three times that of the nominal voltage rating. If the system can withstand this peak the higher rated fuse may be used. Probably the most common problem created by high arc voltages is the sparking over of lightning arresters. As this is a common problem, it is discussed in detail in the section Fuses and Lightning Arresters. It should be remembered that in most cases the fuse voltage rating should not exceed the system voltage by more than 40% and under no circumstances may the system voltage exceed the maximum design voltage rating of the fuse. The altitude at which a currentlimiting fuse is applied must also be considered. The dielectric strength of air decreases with increases in altitude, necessitating a modification to the voltage rating above 1000m. Altitude correction factors are listed in Annex B of IEEE Std. C7.100.1. Asymmetry Factors Asymmetry Factor at 1/ Cycle 1.7 1.6 1.5 1.4 1. 1. 1.1 Interrupting The rated maximum interrupting current of a current-limiting fuse is the rms value of the symmetrical AC component of the highest current that the fuse has been demonstrated to be able to successfully interrupt under any possible condition of asymmetry with specified circuit conditions. A fuse must not be applied at any location where the available fault current exceeds the rated maximum interrupting current of the fuse. In general, current-limiting fuses are not sensitive to higher levels of interrupting current. Interrupting ratings are normally based on market requirements and economic cost or availability of testing facilities. Interrupting ratings of particular fuse types are listed in the appropriate fuse data sheets. 1 4 5 10 0 0 40 50 Circuit X/R Ratio V14-T-6 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses Fuse Selection. Historically, current limiting fuses had been assigned asymmetrical interrupting ratings and MVA interrupting ratings. Compliance with the test requirements in IEEE Std. C7.41-000 for current limiting fuses ensures that Eaton s fuses are tested under peak asymmetry conditions. Fuses are not constant kva devices; if the circuit voltage is reduced, the interrupting capacity is not increased. The kva interrupting rating is reduced if the fuse is applied at a lower value of circuit voltage. The peak asymmetry factor in the first half cycle is a function of the circuit X/R ratio of the circuit, and the relationship is shown on Page V14-T-6. The theoretical maximum value of the asymmetry factor in a purely inductive circuit would be 1.7. However, with the X/R values encountered in power circuits, the factor is rarely more than 1.6. In the past, fuses were sometimes rated by nominal three-phase kva ratings. The nominal three-phase kva rating was calculated by the formula kva = I x kv x 1.7, where I is the rated maximum interrupting current in symmetrical rms amperes and kv is the nominal fuse voltage rating. When a current-limiting fuse interrupts a fault current above its threshold current, it will limit the amplitude of the current in the first major loop. The level of current limitation, measured by the ratio of peak circuit available current to the fuse peak let-through current increases as the value of symmetrical available current increases above the fuse threshold current. In addition to controlling the amplitude of the let-through current, a current-limiting fuse can also cause the current to be extinguished significantly earlier than the natural current zero of the circuit. The altitude at which a current-limiting fuse is applied must also be considered. The dielectric strength of air decreases with increases in altitude, necessitating a reduced interrupting rating above 1000m (80 ft). Altitude correction factors are listed in Annex B of IEEE Std. C7.100.1. A general purpose current limiting fuse can have some limits on interrupting low currents. General purpose fuses are fault protective but not overload protective. They do not provide protection for values of overload current in the range of one to two times the fuse continuous current rating. A back-up current limiting fuse only protects against high values of fault current, and must be applied with another series protective device. For lower values of fault current, below the minimum interrupting current of the fuse, the series protective device must interrupt these lower values of fault current. Continuous Eaton current limiting fuses have been demonstrated to be able to carry their rated current continuously without exceeding the temperature rise values permitted by C7.40. Continuous current ratings of particular fuse types are listed in the appropriate fuse data sheets. Eaton current-limiting fuses have A-, C-, E-, R-, X- or dual E/X-ratings. An A-rating indicates that the value before the A is the rated continuous current of the fuse. A C-rating indicates that the value before the C is the rated continuous current of the fuse, and that the calibrated current-responsive element will melt in 1000 seconds at an rms current within the range of 170 to 40% of the rated continuous current. The C-requirement is specified in ANSI C7.47. An E-rating (100E or less) indicates that the value before the E is the rated continuous current of the fuse, and that the calibrated current-responsive element will melt in 00 seconds at an rms current within the range of 00 to 40% of the rated continuous current. An E-rating (greater than 100E) indicates that the value before the A is the rated continuous current of the fuse, and that the calibrated current-responsive element will melt in 600 seconds at an rms current within the range of 0 to 64% of the rated continuous current. The E-requirements are specified in ANSI C7.46. Some Heritage Westinghouse CLE fuses were assigned an X-rating that indicates that the value before the X was the rated continuous current of the fuse, but the fuse design did not satisfy the E- requirements specified above. Other Heritage Westinghouse CLE fuses were assigned dual E- and X- ratings, where the lower value satisfied the E- requirements above, but the fuse could also carry a higher value of continuous current without exceeding the temperature rise values permitted by C7.40, the X-rating. An R-rated fuse has current responsive elements calibrated to melt between 15 and 5 seconds when subjected to a current of 100 times the R value. These fuses also have temperature rise requirements at specific values of current. The R-requirement is specified in ANSI C7.46. E- and X-rated fuses are power class fuses, used in transformer and feeder circuits. R-rated fuses are power class fuses, and are used specifically in medium voltage motor controllers. C-rated fuses are distribution class fuses, and are used mainly in transformer circuits. A-rated fuses can be distribution or power class fuses. An E- or C-rating only define one gate on the time-current curve of the fuse, and does not imply interchangeability between fuses from different manufacturers. There are also significant differences between the time-current curves of E-rated current-limiting and E-rated expulsion fuses, both in the low overcurrent and high fault current areas. E-ratings for expulsion fuses generally give a :1 ratio of minimum melting current to continuous current rating. However, E-ratings for current-limiting fuses generally give a 1.6 to 1.8 ratio of minimum melting current to continuous current rating. If the fuse is subjected to a current below the 0, 600, or 1000 second melting current as stated in the E or C fuse definitions, but substantially above the continuous current rating of the fuse for an excessive length of time, a large amount of heat is generated and this may cause damage to the fuse, adversely affecting the fuse integrity or changing the time-current characteristics of the fuse. Specific allowable overload characteristics for generalpurpose and full-range current-limiting fuses must not be exceeded under any circumstances. If back-up fuses are properly applied with a suitable low current protection device to clear low fault currents, overloads should not present a problem. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-7
. Limiting Fuses Fuse Selection In practice, current-limiting fuses are used to protect circuits feeding transformers, motors and other equipment where overloads and inrush currents are common. -limiting fuses have a rather low thermal capacity and cannot carry overloads of the same magnitude and duration as transformers and motors of equal continuous current rating. For this reason, a general fuse application ratio of 1.4:1 fuse continuous current rating to full load current is suggested so the fuse will not operate on acceptable overloads and inrush conditions. This is a general figure for typical applications and that a ratio as low as 1:1 can be used if the system current will never exceed the rated current of the fuse. In other applications, a higher ratio will be required to prevent the fuse from operating on transformer inrush or motor starting current or from being damaged due to severe overloading. More specific application information can be found in the individual application sections that follow. Under no circumstances must the fuse continuous current rating be less than continuous load current and that E- and C-rated fuses may not provide protection for currents in the range of one to two times the continuous current rating. Fuse Enclosure Packages It is quite common for current-limiting fuses to be mounted in a fuse enclosure package such as a switch in an enclosure that is surrounded by air, or a transformer draw-out well that is mounted in the transformer and surrounded by hot oil. Fuse enclosure package classes are defined in ANSI C7.40. Due to the elevated ambient temperature produced by these enclosure packages, it is sometimes necessary to derate the continuous current rating of the fuse. When an Eaton fuse is to be used within an enclosure, be sure to check with the manufacturer of that enclosure and use the suggested current rating or apply the suggested derating factor if one is necessary. Parallel Fuses At times it is desirable to have a continuous current rating larger than any single fuse barrel can provide. Higher ratings can be obtained by paralleling fuses. Two, three and four barrel designs are available. Consult Eaton for specific guidance. Under no circumstances should fuses be paralleled unless the paralleling is one of the extensively tested Eaton designs. Coordination In addition to selecting a fuse that meets the voltage, interrupting and continuous current requirements for the application, it is also important to ensure that the melting and clearing performance of the fuse protects and coordinates adequately with other circuit components. Eaton publishes minimum melt and total clear time-current characteristics, and minimum melting and total clearing I t values to assist with this coordination. The minimum melt curve gives the minimum melting time in seconds of the fusible element(s) at a particular value of symmetrical rms current under specified temperature conditions and without pre-loading. The total clearing curve gives the maximum clearing time in seconds to complete interruption of the circuit at a particular value of symmetrical current under specified conditions. The range between the minimum melting and the total clearing time current curves includes an allowance for manufacturing tolerances, and the arcing time of the fuse after melting. Arcing time is time in seconds lapsing from the melting of the fusible element(s) to the final interruption of the circuit. The minimum melting and total clearing I t values indicate fuse and circuit damage energy values and are used only for fault currents that melt the fuse elements in less than 0.1 second, that is, above the threshold value for the fuse. As previously mentioned, three types of current-limiting fuses are defined in ANSI/ IEEE standards. Full-range fuses will interrupt any value of current from the interrupting rating down to that which will cause the element(s) to melt under specified conditions. Generalpurpose fuses will interrupt any value of current from the interrupting rating down to a current that will melt the element(s) in one hour under specified conditions. Back-up fuses will interrupt any current from the interrupting rating down to the rated minimum interrupting current. When coordinating using a full-range or generalpurpose fuse, it is necessary Allowable Overload Factors Hours 1.5 1 1/ Sec. 100A or Less 1000 W 600 00 00 100 Average Melting Curves Above 100A to ensure the current does not exceed the fuse overload characteristics. If back-up fuses are used, ensure that another device that will clear fault currents below the minimum interrupting current of the fuse is used. Proper coordination of current-limiting fuses in the overload mode is ensured by keeping the fuse minimum melting curve above the total clearing curve of any downstream overcurrent protective device, and keeping the fuse total clearing curve beneath the minimum operating curve of any upstream protective equipment. Coordination in the short-circuit zone is achieved by simply using the I t values, and keeping the minimum melting I t of the fuse above the total clearing I t of any downstream protective device, and keeping the total clearing I t of the fuse beneath the damage value of the upstream equipment. A B C X Average Melting Curves 1 4 1 4 x 100% of Fuse Average Melting Curves 1 4 W = E rated general purpose type fuse 100A or less except 15.5 kv CLE X = E rated general purpose type fuse above 100A except 15.5 kv CLE Y = C rated general purpose type fuse Z = General purpose fuse CLE 15.5 kv pnly Effects of Ambient Temperature on Melting Curves Melting Time in Percent of Time Shown on Time- Characterist Curve 10 10 Y Tin Silver 110 100 90 80 70-40 -0-0 -10 0 10 0 0 40 50 60 Z V14-T-8 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses Fuse Selection. Time-current curves for Eaton s current-limiting fuses are based on standard conditions of temperature and altitude, and the zone between the minimum melting and total clearing characteristics allows for manufacturing tolerances. Preloading and elevated ambient temperatures are not allowed for. It is recommended that a safety zone be used when applying current-limiting fuses to ensure that proper coordination is maintained to allow for these factors. There are two approaches used to achieve this safety zone and both produce similar results. One approach employs a 5% safety zone in time for a given value of current and the other uses a 10% safety zone in current for a given value of time. Eaton uses the second method as it allows the safety zone to be published on the left-hand side of all the time-current curves. Coordination is then achieved by overlaying curves and shifting one by the width of the published safety zone. If desired or if unusual conditions exist, shifts in the time-current curve due to ambient temperature and preloading may be examined individually. Eaton s timecurrent characteristics are derived from tests on fuses surrounded by freely circulating air at an ambient temperature of 5 C and with no initial preloading as specified in C7.40. Fuses subjected to conditions other than the above will experience shifts in the timecurrent curves. The upper right curve gives the adjusting factors for changes in ambient temperature and also the adjusting factors for preloaded fuses. These adjusting factors are valid only for Eaton s power fuses. The lower right curve gives an example of a properly coordinated fuse application. The figure shows a generalpurpose CLE fuse protecting the primary of a 1000 kva transformer with Eaton s type DS or Magnum low voltage air circuit breakers protecting the secondary equipment. Coordination with reclosing circuit breakers may be performed with the aid of the proper coordination chart. This type of curve is explained in the repetitive faults section of the application data. Interchangeability C-, E- and R-ratings define the performance of a fuse at one particular point on the timecurrent curve, However, the fuse performance at other values of current are shown by each manufacturer s published time-current curves. Since these curves are a function of the distinctive current responsive elements used by each manufacturer, fuses with the same C-, E- or R-ratings from different manufacturers may not be interchangeable in all applications. Users must also be aware that E-rated current limiting type and E-rated expulsion type fuses have very different time-current and short circuit characteristics. It is the responsibility of the user to ensure that the physical dimensions and electrical characteristics of the fuse are appropriate for the particular application in the intended equipment. Specific Applications There are aspects to be considered other than voltage rating, interrupting rating and continuous current rating. One concerns the types of current-limiting fuses: fullrange fuses, general-purpose fuses and back-up fuses. Fullrange and general-purpose fuses are normally applied without supplementary protection in the medium voltage system. These fuses are used on transformer and feeder applications. Generalpurpose fuses are used in power transformer circuits where secondary side protective devices will clear secondary faults. Full-range fuses are used in distribution transformer circuits where there may not be protection on the secondary side of the transformer and the primary fuse may be called upon to clear a secondary system fault. A back-up fuse must have another medium voltage protective device so that it will not be called upon to interrupt currents below its specified minimum interrupting rating. An example of a properly applied medium-voltage back-up current-limiting fuse is in a motor starter unit where the CLS fuse is used in series with a relay and contactor to protect it from faults that exceed the contactor rating. Pre-Loading Adjustment Factors for Power Fuses Melting Time in Percent of Time Shown on Time- Characterist Curve F 100 50 Fuses 100A and Less 0 0 50 100 150 00 50 Load in Percent of Fuse Ampere P Typical Fuse Coordination A 4.8 kv B C C C 0 CLE-1 00E C-Rated Fuses C B A 1000 kva 480V DS-416 100 LSI DS-06 400 LI LD LD SD SD I Breaker Amps PU T PU T PU DS-416 100 1.0x 1 sec 7x 0. sec 10 DS-06 400 1.0x 6 sec 10 40 60 80 100 Minimum Melt 00 400 600 800 1000 Fuses Above 100A Total Clearing 000 4000 Scale x 10 = Secondary In Amperes 6000 8000 10000 1000 800 600 400 00 100 80 60 40 0 10 8 6 4 1 0.8 0.6 0.4 0. 0.1 0.08 0.06 0.04 0.0 0.01 Time In Seconds Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-9
. Limiting Fuses Fuse Selection Let-Through An important feature of current-limiting fuses is the limitation of fault current and energy seen by the system being protected. Although a current-limiting fuse is not current-limiting for values of fault current below the threshold current of the fuse, these lower values of fault currents do not present problems due to the low energy. For currents equal to or greater than its threshold current, the fuse will limit the current let-through to the system. The value of this letthrough current is dependent on the particular fuse type, the magnitude of the fault current and the timing of the fault initiation the power Typical Peak Let-Through Curves Peak Instantaneous Let-Through In Kilo-Amperes 100 80 60 40 0 10 8 6 4 1 0.8 0.6 400 600 800 1000 000 4000 factor of the circuit only has a minimal effect. If the timing of the fault is such that fuse melts after the current has crested, the fuse will not limit the peak current because the peak has already passed. With a fully asymmetrical fault, the available current would have crested in 1/4 cycle. However, the presence of the fuse in the circuit will limit the peak value of current, and have caused the current to have peaked before the 1/4 cycle time. Thus, the currentlimiting action varies with the degree of asymmetry of the fault. 6000 8000 10000 0000 Available In Amperes 40000 60000 80000 100000 450 400 50 00 50 00 175 150 15 100 80 65 50 40 Eaton publishes let-through curves that are based on power circuits with an X/R ratio greater than 15. The curve below shows a typical let-through curve. The horizontal axis gives the rms symmetrical available fault and the vertical axis the peak instantaneous let-through current. Let-through current for any particular fuse may be found by choosing the curve for the fuse in question and reading the let-through for any given value of available fault. The point where the curve intersects the asymmetrical available peak line is the threshold current (for that fuse) or that point where the fuse first become current limiting. Curves like this are found in Eaton s current-limiting fuse application data and make it easy to check the fuse letthrough against the withstand of the equipment it is protecting. Fuses and Lightning Arresters -limiting fuses generate arc voltages that are higher than the system power frequency voltages. The magnitude of arc voltage generated is dependent on the element design, element length, and the type and size of filler. A strip type element, for example, generates arc voltages that are more dependent on the system voltage, whereas a uniform cross section wire element produces arc voltages dependent on the fault current value. Users of current-limiting fuses are not generally aware of the fuse design so a general estimation of generated arc voltage is needed. Eaton s current-limiting fuses perform their function by generating arc voltages that may peak as high as three times the nominal voltage rating of the fuse at its interrupting rating. When applying current-limiting fuses, care should be taken to see that arc voltages produced by the fuse do not exceed the insulation level of the system. An examination of the insulation level of the system will show that lightning arresters are the principal equipment to check. If arc voltages cause interconnected lightning arresters to operate, a relatively high current would be shunted into arresters that are not designed for such interrupting duty. This problem could be eliminated by mounting the fuse on the line side of the arrester, but this is not always practical. Many utilities prefer to apply the fuse on the load side of the arrester to eliminate possible fuse damage that might result from lightning. Other utilities employ transformers with bushing mounted currentlimiting fuses where the fuse must be installed on the load side of the arrester. For current-limiting fuse applied on the load side of a distribution arrester, arc voltages do not affect the arrester if the fuse and the arrester have the same voltage rating; however, if an arrester on the line side has a voltage rating lower than that of the fuse, it may sparkover. Under this condition the arrester and the fuse will share the current. Distribution type arresters have higher impedances that keep them from experiencing excessive amounts of current and they are not usually damaged. Intermediate and station type arresters on the other hand have lower impedances that allow them to experience higher currents and they may become damaged. Therefore, station and line type arresters should not be applied on the line side or in parallel with current-limiting fuses unless their sparkover value is greater than the maximum arc voltage the fuse can produce. Machine protection arresters are purposely designed to have low sparkover values. They should, however, be connected directly to the machine terminals and not on the line side of the fuse. If properly connected, the fuse arc voltage can have no effect on them. Correctly applied distribution class lightning arresters found on the line side of the fuse have sparkover values sufficiently high to remain unaffected by fuse operations. V14-T-10 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses Applications. CLPT Fuses Contents Description Applications Potential and Control Transformer Application........................... Motor Protection........................ Repetitive Faults........................ Page V14-T-16 V14-T-16 V14-T-17 Applications Transformer Applications Fuses are installed on the primary side of a transformer to: Protect the system on the source side of the fuses from an outage due to faults in or beyond the transformer (isolate a faulted transformer from an otherwise healthy distribution system to prevent further disturbance). In the case of an internal winding fault in the transformer, the fuse should prevent further collateral damage to the transformer and its surroundings. limiting fuses are generally better able to limit internal damage to the transformer than expulsion fuses Coordinate with protection on the low voltage side of the transformer (transformer primary protection must be overload tolerant, allowing the secondary protection to clear faults occurring downstream of the secondary protection) Protect the transformer against bolted secondary faults (the fuse should operate on any bolted secondary faults between the transformer secondary terminals and the secondary protection before the transformer is damaged) Protect the transformer against higher impedance secondary faults to whatever extent is possible (the fuse should limit damage to the transformer windings to the best extent possible) Selecting the proper voltage and interrupting ratings for the fuse is straightforward and has been sufficiently covered in their respective sections. There are two sometimes conflicting factors when selecting a fuse to protect a transformer circuit. The continuous current rating must be large enough to prevent premature fuse interruption from magnetizing or inrush currents and it must also be large enough to prevent fuse deterioration or fuse interruption during normal or emergency overload situations. The fuse continuous current rating must also be small enough to provide the protection listed in the purpose hierarchy. In practice, it is not always possible to select a fuse large enough to allow for all the overloading required and still provide complete protection for the transformer. In these cases, the user should decide how the priorities lie and trade off overloading ability for transformer protection. Fuses on the primary side of transformers should not operate on transformer magnetizing inrush current. The magnitude of the first loop of inrush current and the rate at which the peaks of subsequent loops decay is a function of many factors. Some of these are transformer design, residual flux in the core at the instant of energization, the point on the voltage wave at which the transformer is energized, and the characteristics of the source supplying the transformer. When energizing, the heating effect of the inrush current in a fuse can be considered equal to 1 times the transformer full load current flowing for 1/10 of a second. Thus, when selecting the current rating for fuses used at the primary side of a transformer, the fuse minimum-melting curve must lie above and to the right of the point on the timecurrent curve corresponding to 1 times full load current and 0.1 second. The fuse whose minimum melting curve lies just above and to the right of this point is the lowest rated fuse that can be used at the primary terminals to satisfy the inrush requirements. This criterion is often satisfied for all Eaton s fuses if the fuse current rating is equal to or greater than the transformer selfcooled full load current. System operators frequently overload their transformers for short periods of time during normal and emergency situations. To allow this flexibility, it is necessary to select a fuse that can carry the overload without being deteriorating. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-11
. Limiting Fuses Applications To accommodate these overloads, a fusing ratio higher than 1:1 is almost always required when applying fuses for transformer protection. The fuse emergency overload curve (Page V14-T-8) and the required extent of overloading is used to determine the smallest fuse that can be applied. Determine the minimum fuse rating by using the duration (ordinate) of the transformer overload on the fuse overload curve (Page V14-T-8) to obtain a the multiple of current rating that should not be exceeded. Divide the transformer overload current by the multiple obtained from the overload curve the result is the minimum fuse current rating. Select the fuse with a continuous current rating that equals or is just larger than this value. The allowable time duration of the current in the primary side fuses during transformer overload should never exceed the values shown by the fuse overload curve on Page V14-T-8. Note: Short term and long term overloading of transformers will adversely affect the service life of the transformer. Also, increasing the primary fuse size to allow for higher overloads decreases the protection afforded the transformer. The extent to which transformers are overload, and the implications for system security are economic decisions that are taken by the system operator. Suggested minimum fuse sizes for protection of selfcooled transformers are given in the table on Page V14-T-15. These tables are based on the premise that the maximum 1.5 hour overload on the transformer would not exceed 00 percent of the transformer rating. This overload condition requires that the minimum ratio of fuse current rating to transformer full load current is 1.4:1. Fuse sizes listed in the table on Page V14-T-15 are those that are just higher than 1.4 times the transformer full load current. If higher or longer duration transformer overloads are to be permitted, a fuse with a higher continuous current rating may be required. The procedure described above should then be used to find the smallest permissible fuse size. If provisions are made by thermal or other protective devices to limit transformer overloads to a lower range, the ratio of fuse current to transformer full load current can be less than 1.4:1. To find the amount of reduction permissible without damage to the fuse, the procedure using the overload curve should be used. When the transformer has forced cooling, the minimum fuse size that can be applied that be based on the transformer top rating and the extent to which the transformer will be overloaded beyond the top rating. It should be remembered that E-rated current limiting fuses applied at the primary terminals of a transformer might not provide protection for currents between one and two times the continuous current rating of the fuse. That is, for currents in this range that exceed the time limits shown by the fuse overload curve on Page V14-T-8 under the heading Coordination. Fuses subjected to such overloads may suffer from undetectable deterioration before the fusible element melts. In order to provide dependable overload protection for the transformer, protection must be applied on the secondary side of the transformer. Equal concern should be given to the upper limit of continuous current rating that will provide protection for the transformer. The extent to which the fuses are to protect the transformer against secondary faults is one of several factors that determines the upper limit. When a main secondary breaker is not used, the primary fuses may be the only devices that provide thru-fault protection for the transformer. In these circumstances the fuse should operate before the transformer windings are damaged due to the heavy currents. The capability of transformer windings to carry these thru-fault or heavy currents varies from one transformer design to another. When specific information applicable to individual transformers is not available, the transformer heat curves given on Page V14-T-14 can be used to evaluate the thru-fault protection offered the transformer by the fuses. The curve labeled N=1 is drawn through the points defined in IEEE/ANSI Appendix C57.9, Section 9-06.00 such that the curve has the same shape as shown in Figure 1 of IEEE publication 7 titled, Guide for Protective Relay Application to Power Transformers. This curve applies to single-phase transformers and to threephase faults on three phase transformer banks. Curves for values of N other than 1 apply to unsymmetrical faults on three-phase transformers and three-phase transformer banks that have at least one delta-connected winding. Ideally, the total clearing time-current of the primary fuse would lie below the heat curve for all values of current up to 5 times the transformer rated current. However, this is not usually possible as the fuse has minimum limitations placed on the rating due to long time overload impressed on the transformer and the fact that E-rated expulsion fuses do not provide protection for currents below two times their continuous current rating. In spite of these lower limitations, primary side fuses should protect the transformer for bolted secondary faults and higher impedance secondary faults to whatever extent is possible. V14-T-1 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses Applications. Wye connected transformers tied to the system neutral or floating have line currents that are equal to the winding currents for faults external to the transformer, regardless of whether the neutral is or is not grounded. Thus a fuse connected to the terminal of a wye-connected winding will see the same current that is in the winding for all faults external to the transformer. Also, there is a simple relation between the primary and secondary amperes, whether load or fault currents are being considered. This is not the case when the transformer has a deltaconnected winding, either on the primary or secondary side of the transformer. With delta-connected primary windings, the current in the lines (fuses) supplying the delta winding and currents in the primary delta windings generally are not equal, and of greater importance the ratio of line (fuse) current to winding current varies with the type of fault on the external system. With delta connected secondary windings, the current in the transformer secondary windings is generally not equal to the secondary line current, and the ratio of primary line current to the secondary line current varies with the type of fault on the secondary system. The relationship between rated line (fuse) current and rated winding current (referred to, as the base current of the winding in IEEE/ANSI Std. C57.1.00 is 1 for wye connected primaries and is 1/ for delta-connected primaries. IEEE/ANSI Std. C57.1.00 also indicates that the transformer winding shall be capable of withstanding 5 times rating winding current for two seconds and smaller multiples of rated winding current for longer periods of time. However, transformer overloads and faults are generally expressed in terms of line and not winding current. This could present a problem for fault conditions where the type of fault changes the relationship between the line and winding current (see the table below) gives a multiplier that will translate the line current in multiples of the winding current for different type faults for various transformer windings. This table leads us back to the transformer heat curves shown on Page V14-T-14 where it can be verified that the curve N=1 passes through the point 5 times full load line current and two seconds. The curves for other than N=1 are for unsymmetrical faults as can be seen from the table below. Multiples of Primary Line for Fixed Secondary Winding Transformer Connection All Neutrals Grounded Coordination diagrams employ the transformer heat curves and fuse time-current curves to determine which fuse rating may be safely applied. These diagrams are the tools used to apply the information previously cited. The most straight-forward diagram involves fuses applied at the terminals of transformers with wye primary windings. The table below shows that the fuse current is the same as the winding current for all faults external to the transformer. This means the coordination diagram consists simply of the direct reading of the fuse time-current curves and the transformer heat curve N=1 for coordination diagrams where the abscissa is labeled in amperes in the primary system. To coordinate with the abscissa labeled in secondary amperes, the same two curves are shifted to allow for the ratio between primary and secondary amperes. N (N Times Secondary Winding Gives Multiples of Primary Line ) Primary Secondary Three-Phase Fault Phase-to-Ground Fault Phase-to-Phase Fault 1 1 1 1 1 1 1/ / / Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-1
. Limiting Fuses Applications When fuses are employed at the terminals of a delta-wye transformer, the coordination diagram becomes a bit more involved. In this instance the table on Page V14-T-1 shows that the fuse current varies in relation to the winding current depending on the nature of the fault. Thus, when the coordination is with respect to primary amperes, the diagram consists of one direct reading fuse timecurrent curve and one or more transformer heat curves. The number of heat curves included would be determined by the types of secondary faults considered. The table on Page V14-T-1 gives the N curve to be used for the different faults to be considered. When the coordination is with respect to secondary amperes, the diagram consists of one transformer heating curve (N=1) and up to three fuse timecurrent curves. The three timecurrent curves are again dependent on the possible faults to be considered. The table on Page V14-T-1 shows that after the curve is translated to secondary amperes it must be shifted one over the square root of when phase-to-earth faults are considered and two over the square root of when phase-tophase faults are considered to obtain proper coordination. Regardless of whether a primary or secondary current abscissa is employed, a coordination diagram for a deltawye transformer shows that the primary side fuses do not protect the transformer for highimpedance secondary faults and overloads. This type of protection can be obtained through the application of secondary side breakers. If a secondary breaker were used it would be added to the coordination diagram by plotting the breaker phase and ground trip characteristics. Selective coordination would exist if the breaker phase trip characteristic curve lies below the fuse characteristic for a phase-tophase fault and the heating curve, and the breaker ground trip characteristic for a single line-to-ground fault and the heating curve. The proceeding pertains to diagrams using secondary amperes. If the breaker characteristic is to be translated to primary amperes, its characteristics must lie beneath the fuse characteristic and the heating curve for N=1. For unsymmetrical faults, the breaker characteristic shifts by the same multiple as the heating curve. If further secondary protection is translated to the primary, the characteristic must lie beneath the secondary breaker characteristic for the different types of faults considered. Fuses used at the terminals of a delta-delta transformer require: 1. Fuse time-current.. Heating curves if both three-phase and phase-tophase faults are to be considered. This agrees with information presented in the table on Page V14-T-1. When the abscissa is in primary amperes, the curves are read directly. An abscissa in secondary amperes uses the same curves but shifts them from primary to secondary amperes. Typical Transformer Heat Curves 10000 8000 6000 4000 000 1000 800 600 Time in Seconds 400 00 100 80 60 40 0 10 8 6 4 For all the coordination diagrams just discussed, the vertical distance between the total clearing curve and the safe heat curve indicates the margin of protection offered for different types of faults. It should be remembered, however, that the transformer heat curves illustrated in this application data are drawn from the reference previously cited and they may not apply to all transformer designs. N=A/ N=1 N= / N=1/ Transformer Full Load Adjusted Heat Curves Inrush 0.6 0.8 1 4 6 8 10 0 40 60 80 100 Line in Multiples of Transformer Full Load (Rated) Line V14-T-14 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses Applications. Suggested Minimum Limiting Fuse s Self-Cooled.4 15.5 kv Power Transformer Applications System Nominal kv.4 4.16 4.8 7. 1.0 1. 1.8 14.4 Fuse Maximum kv.75 5.5 5.5 8. 15.5 15.5 15.5 15.5 Transformer kva Self-Cooled Full Load Amps Fuse Amps E or C Full Load Amps Fuse Amps E or C Full Load Amps Fuse Amps E or C Full Load Amps Fuse Amps E or C Three-Phase Transformers 9. 5E 1. E 1.1 E 0.7 E/.5C 0.4 1E 0.4 1E 0.4 1E 0.4 1E 15.6 15E.1 E 1.8 E 1. E/.5C 0.7 1E 0.7 1E 0.6 1E 0.6 1E 0 7. 15E 4. 10.6 5E.4 4.5C/5E 1.4 E/4C 1. E/4C 1. 1E/4C 1. E/4C 45 10.8 15E/18C 6. 10 5.4 10.6 5E/6C. 4C/5E C/5E 1.9 E/4E 1.8 E/4E 75 18 5 10.4 15 9 15E/18C 6 10.6 6C/10E. 5E/6C.1 5E/6C 5E/6C 11.5 7 40E/45C 15.6 5 1.6 0 9 15 5.4 8C/10E 5 8C/10E 4.7 8C/10E 4.5 8C/10E 150 6 50 0.8 0 18 5 1 18C/0E 7. 10 6.6 10 6. 10 6 10 5 54 75C/80E 1. 45C/50E 7. 40 18 5 10.8 15 9.9 15 9.4 15 9 15 00 7 100 41.6 60C/65E 6 50 4 5C/40E 14.4 5 1.1 0 1.5 18C/0E 1 18C/0E 500 10 00E 69.4 100 60 100E 40 60C/65E 4.1 40 1.9 0 1 0 0 0 750 180 50E 104 150E 90 15E 60 100 6.1 60C/65E.8 45C/50E 1 45C/50E 0.1 45C/50E 1000 41 50E 140 00E 10 00E 80 15 48.1 75C/80E 4.7 60C/55E 4 60C/65E 40.1 60C/65E 1500 60 600E 08 00E 180 50E 10 00 7. 100 65.6 100 6 100 60.1 100 Full Load Amps Fuse Amps E or C Full Load Amps 000 481 750E 78 400E 41 50E 160 50 96. 150 87.5 15E/ 150C Fuse Amps E or C Full Load Amps Fuse Amps E or C 84 15E/ 150C Full Load Amps Fuse Amps E or C 80. 15E/ 150C 500 600 1100E 46 600E 01 450E 00 50E 10 00E 109 175 104 175 100 175 Single-Phase Transformers 5.1 5E 1. E 1 1.5E 0.7 E/.5C 0.4 1E 0.4 1E 0.4 1E 0.4 1E 10 4. 15E.4 5E.1 E 1.4 E/.5C 0.8 1.5E 0.8 1.5E 0.7 1E 0.7 1E 15 6. 15E.6 5E.1 5E.1 E/.5C 1. E/4C 1.1 E/4C 1.1 E/4C 1.1 E/4C 5 10.4 15E 6 10 5. 10.5 5E/6C.1 E/4C 1.9 E/4C 1.8 E/4C 1.7 E/4C 7.5 15.6 5 9 15E/18C 7.8 1C/15E 5. 8C/10E.1 5E/6C.8 4C/5E.7 4C/5E.6 4C/5E 50 0.8 0E/5D 1 0 10.4 15 7 10 4. 8C/10E.8 8C/10E.6 8C/10E.5 5E/6C 75 1. 45C/50E 18 5 15.6 5 10.4 15 6. 10 5.7 8C/10E 5.4 8C/10E 5. 8C/10E 100 41.7 60C/65E 4 40 0.8 0 1.9 0 8. 1C/15E 7.6 1C/15E 7. 1C/15E 6.9 10 167 70 100 40 50 5 50. 40 1.9 0 1.7 18C/0E 1.1 18C/0E 11.6 18C/0E 50 104 150E 60 100E 5.1 80E 4.8 50E/60C 0.8 0 19 0 18.1 0 17.4 0 19 00E 80 15E 69.5 100E 46. 65E/100C 7.7 40 5. 40 4.1 40.1 40 500 08 00E 10 00E 104 150E 9.6 100 41.6 60 8 60C/65E 6. 60C/65E 4.7 60C/65E 667 78 400E 160 50E 19 00E 9.6 150 55.4 85C/100E 50.5 75C/80E 48. 75C/80E 46. 75C/80E 88 47 600E 00 50E 17 50E 115.5 00 69.4 100 6.5 100 60.4 85C/100E 57.8 85C/100E 150 51 750E 00 450E 60 400E 174 50 104 175 95 150 90.6 150 86.8 15E/ 150C Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-15
. Limiting Fuses Applications Potential and Control Transformer Application CLPT (CLE-PT) and (N)CLPT type fuses provide protection for the systems to which potential and control power transformers are connected. Like other fuses, (N)CLPT fuses must meet all of the basic selection requirements but there are a couple of differences in the application that will be mentioned here. Instrument potential transformer fuses are selected on the basis of the transformer magnetizing inrush current instead of the full load current rating. To prevent unnecessary fuse operation, the fuses must have sufficient inrush capacity to safely pass the magnetizing current inrush of the transformer. Fuses should be selected on the basis of the smallest current rating whose minimum melting time-current relationship lies above and to the right of the inrush value. In some applications these types of transformers are operated in a wye connection at 0.557 times their normal rated voltage. (N)CLPT fuses will usually protect the transformer when applied at this reduced voltage but if the short circuit is through long leads or if the primary voltage is materially decreased by the short circuit on the secondary, the short-circuit current may not be sufficient to operate the fuses. Motor Protection Medium voltage motor starters are used to protect medium voltage motor circuits. These starters use overload relays, contactors and back-up current-limiting fuses to provide complete overcurrent protection. The fuses operate to interrupt high values of fault current that exceed the interrupting rating of the contactor and the overload relay operates to open the contactor before the fuse operates for lesser, yet abnormal, currents due to motor overloads, locked rotor, repeated starts, extended accelerating time or low value fault currents. To obtain this coordination, the proper combination of fuse, contactor, current transformer and overload relay must be used to ensure that the contactor operates within its ratings and the fuse for those values of fault current that exceed the contactor s rating. Responsibility for this coordination rests with the manufacturer of the motor starter. In choosing suitable components, the following four areas of protection must be considered: 1. Protection of the motor against sustained overloads and locked rotor conditions by means of the overload relays and contactor;. Protection of the fuses against sustained currents above the fuse continuous current ratings and yet below their minimum interrupting value by means of overload relays and contactor;. Protection of the circuit by means of the overload relays and contactor for currents within the interrupting limits of the contactor where it is more economic for the contactor to operate rather than the fuses; and 4. Protection of the circuit, contactor, overload relays and current transformers from damaging effects of maximum fault currents by means of properly sized back-up currentlimiting fuses that restrict the let-through currents on high current faults to tolerable levels. The fuses are not protecting the motor itself; they are protecting the system from faults in the motor and motor control circuit. When selecting a fuse for such a coordinated motor starter scheme, the basic requirements for the fuse in addition to those of adequate voltage and interrupting rating are: 1. The fuse continuous current rating must be equal to or greater than the full load current of the motor;. The fuse must have the capacity to carry continuously, without damage, currents less than the pick-up value of the overload relay, but no less than 15% of the motor full load current; and. The fuse must have the capacity to carry, without damage, currents greater than the pick-up value of the overload relay but less than the fuse melt and relay overload setting curves for sufficient time to allow the overload relay to operate. 4. The fuse must be selected to allow for the run-up time of the motor, and also for the frequency of starts. It is typical also to select fuses to allow for two consecutive starts. This is the reason for emphasizing the need to avoid damage to the fuse from long duration overloads such as those caused by locked rotor conditions. Damage can generally be avoided by keeping the melting curve of the fuse above the locked rotor current by a safe margin until it is intersected by the relay curve. A reasonable margin is 10% but the manufacturer s application instructions will state just how close an application is permissible. V14-T-16 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses Applications. Typical Fuse and Motor Starter Coordination Time in Seconds 1000 100 10 1 0.1 4160V CT Motor Limiting Fuse Contractor 0.01 100 1000 10000 in Amperes Thermal Overload Locked Rotor Amperes = 600 Overload Relay 100% of Locked Rotor Amperes = 660 FullLoad Amperes = 160 15% of Full Load Amperes = 00 Starting Time for Motor Fuse Melting Curve Fuse Total Clearing Curve Although it is possible to protect a medium voltage motor circuit with a generalpurpose or full-range fuse without a series relay-contactor combination, it is not a common practice for two reasons. First, the melting current of the fuse is approximately twice its rated current. This means that the fuse does not provide protection against anything less than 100% overload, and usually this range is even larger. Second, the damage characteristics of the apparatus and the total clearing timecurrent characteristic of the fuse hardly ever coincide. Thus a motor protected only by a general-purpose or full-range fuse may be exposed to overloads of somewhat longer duration than desirable or the fuse may limit the equipment s overload capacity. As should be obvious, the duty of fuses in motor starter circuits is characterized by the frequent application of high overloads such as motor starting currents and cooling periods while the motor is off. Eaton s CLS fuse has been thoroughly tested to ensure the fuse is capable of withstanding these frequent and severe heating and cooling cycles. The test consisted of running 000A through a 4R fuse for 10 seconds, then 400A for 5 minutes and finally cooling the fuse with no current for 5 minutes. This three-step cycle was repeated 000 times with the fuse showing no deterioration as measured by change in resistance at the conclusion. To aid in selecting a fuse for motor starter application, the following may prove helpful: Full load current = (horsepower).(746)/ [(voltage).(^.5).(efficiency). (PF) For general use, a 0.9 for efficiency and a 0.8 for power factor yield the following simple relationship between full load current and horsepower: Full load current = (horsepower).(0.701)/(kv) Again on a general basis, inrush current may be assumed to be six times the full load current for a duration of 15 seconds. Repetitive Faults It is often desired to determine the performance of fuses under repetitive faults such as produced by the operation of reclosing circuit breakers. This performance is becoming of increasing interest as a result of the increased application of current limiting fuses on pole type transformers. The performance is determined by graphically simulating the fuse s heating and cooling characteristics that are found in and expressed by the melting time-current curves. Conventional E- and C-rated fuses can with good approximation be regarded as bodies whose heating and cooling properties are described by the basic exponential Curves A and B as shown in Page V14-T-18. Except for being inverted, the cooling curve is the same as the heating curve as both have the same time constant. Each fuse has a specific time constant that can be calculated with sufficient accuracy by the formula 0 = 0.1 S where S is the melting current at 0.1 second divided by the melting current at 00,600 or 1000 seconds. The 00 seconds applies for fuses rated 100E amperes or less, the 600 seconds for fuses rated above 100E amperes, and the 1000 seconds for C-rated fuses. The time constant of a specific fuse, having been obtained in terms of seconds, gives a specific time scale to the general heating and cooling curves of Page V14-T-18. It enables plotting the course of the fuse temperature (in percent values) if the sequence and duration of the open and closed periods of the recloser are known. This is illustrated by curve C that is formed by piecing together the proper sections of Curves A and B. Next the temperature at which the fuse will melt must be determined. Refer to the standard time-current curves and find the melting time M for a specific value of fault current. The melting temperature T m lies where the ordinate to the time M intersects curve A. It is not necessary to know the absolute value of this temperature as it is sufficient to know its relation to the peaks. A similar temperature T n can be found using the total clearing time for the specific fault current. The results are two temperatures where any time the fuse curve C intersects line T m the fuse could operate and any time it intersects line T n the fuse will definitely operate. The gap between T m and T n indicates the tolerance range as set forth in ANSI and NEMA standards where E- and C-rated fuses are defined. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-17
. Limiting Fuses Applications Temperature Cycle of a Fuse During Reclosing Operation Percent Temperature Rise T% 100% 80% 60% 40% 0% N M.75M 1 4 T r 0 p1 p 1 4 Unit Time Relative Time t/ t = Time in Seconds Constant = Time Constant of Fuse Curve A Basic fuse heating curve: T f (I-e t/ ) Curve B Basic fuse cooling curve: T f x e t/ ) Curve C Temperature rise curve of fuse subjected to reclosing cycle M Melting time of fuse at a given fault current N Total clearing time of fuse at same fault current T m, T n Levels of melting temperature of fastest and of slowest fuse (See note below) T s Safe temperature level, considering service variables T f Hypothetical steady-state temperature level (100%) attained if the fuse element did not open when melting temperature was reached but continued to be a resistance of constant value Note: The absolute temperature at which the elements of the fastest and of the slowest fuse melt is the same since both fuses are made of the same material, However, T n and T m are different if measured by the final temperature level if reached at a given current. A B C T n T m T s Reclosing Circuit Breaker Fuse Coordination Percent Temperature Rise T% 100 80 60 40 0 10 8 6 4 Q MMN P-4 1 0.5 1 1.5.5 Relative Time t/ t = Time in Seconds = Time Constant of Fuse Notes: Recloser data: 400PR (cycling code A1-CH). Fuse type and rating: CLT (drawout) 8. kv 150 C. Fuse speed ration, S-150/40 = 5.11. Thermal time constant, = 0.10 S,.61 seconds. Fault current 150A. If the fuse is not to operate, curve C must remain below the level T m by a safe margin. It is common practice to provide such a safety margin by coordinating the breaker with a fuse curve whose time ordinates are 75 percent of those of the melting curve. Line T s represents this temperature as shown. P-5 A Heating Cooling B Although the construction of the temperature diagram as outlined above basically offers no difficulties, the manipulation is made easier and more accurate by putting the graph on semi-logarithmic coordinates as shown. On these coordinates, the cooling curve B becomes a straight line. C V14-T-18 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 E-Rated Power Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses Product Description Eaton offers a wide range of interrupting ratings in single barrel designs with ratings extended to higher currents in double, triple and quad barrel designs. E-rated fuses are available in both long (CLE), intermediate (LHLE) and short (HLE) clip center designs. CLE fuses conform to dimensional standards established in the past by Westinghouse when the original BAL current limiting power fuses for transformer and general feeder applications were introduced. HLE fuses conform to later, shorter dimensional standards. BHLE fuses are identical to HLE fuses with the addition of bolt-in mounting blades. HCL fuses are special dimension fuses for bolt-in and clip-lock mounting blades. Applications Helix type (helical element configuration, current limiting) and Heritage CLE type medium voltage fuses are general purpose, indoor fuses designed to provide both high and low level fault protection. Helix fuses may be applied wherever it is necessary to limit shortcircuit currents on high capacity systems. Because of their general purpose, current limiting characteristics, these types of fuses are well suited for a wide variety of distribution systems and consumer applications. Some of the more frequent possibilities are: Power transformer protection Fused switches Feeder circuit sectionalization Contents Description Page CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses Selection................. V14-T-1 s and Selection.................... V14-T-1 Product Selection....................... V14-T-4 CLE Type........................... V14-T-4 HLE Type........................... V14-T-8 LHLE Type.......................... V14-T-1 AHLE Type.......................... V14-T- BHLE Type.......................... V14-T- HCL Type........................... V14-T-6 Mounting Details........................ V14-T-8 Features Helix Type Fuses Helix type current limiting fuses, designed for indoor and outdoor applications, are replaceable fuse units with automatic blown fuse indication provided by a striker pin. In addition to giving local indication of fuse condition, the striker pin can be used to trigger an external tripping device. The powerful striker pin delivers approximately three joules of energy over a 5/8-inch travel distance, more than sufficient for mechanical operation of trip-all-phase devices or micro-switches. HLE and CLE type fuses can be mounted in disconnect or non-disconnect mounting configurations. BHLE type fuses can be directly bolted-in onto switchgear bus bars. HCL type fuse units are mounted in cam action clip-lock clips for easy installation and replacement. Helix fuses have a semicoreless design, enclosed in high strength, filament wound glass and epoxy tubes. They are filled with high purity silica sand of controlled grain size. Fuse elements are pure silver in a double helix configuration to optimize performance by maximizing the number of elements. The double helix design delivers: Higher current ratings Cooler operation Improved time-current characteristics Reduced 1t let-through Shorter length Single, double and triple barrel designs are available to cover a wide range of current, voltage and interrupting ratings. For their sizes, Eaton s helix type fuses offer the highest available E- ratings. In addition, Eaton s -inch diameter fuses will directly replace other manufacturer's fuses. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-19
.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses Heritage Type Fuses Certain Heritage Westinghouse fuse types have been retained where there are no suitable helix type fuses to replace them. These fuses are normally only supplied for replacement purposes. The major items here are the shorter -inch diameter.75 kv CLE fuses from 15E to 5E and 15.5 kv fuses where the older designs used more parallel barrels than the current Helix design. The Heritage fuse designs are suitable for indoor use only. CLE and HLE Features Helix type current limiting fuses offer a number of advantages over competing current limiting designs. During the selection process, consider the following: Optimized Energy Exchange: The double concentric helix configuration (inner and outer) optimizes energy exchange by making more efficient use of the sand filler Improved Arc Control: The double helix design has more elements for more surface area permitting better arc control Lower Temperature Rise: Heat radiation with the HLE design is excellent resulting in lower normal operating temperatures Promotes Faster Melting: Under overload conditions, thermal transfer from the inner helix is reduced by a modified temperature gradient leading to faster melting Blown Fuse Indication: Blown fuse striker pin will protrude from the top of the fuse providing a visual indication of operation, as well as a triggering means for external devices Interchangeability: Helix type fuses are mechanically interchangeable and in many cases have higher maximum current ratings than competing current limiting fuses Limited Arc Voltage: Improved limited arc voltage on 40E and higher current rating fuses permits 15.5 kv fuses to be used on 8. kv circuits and 8. kv fuses to be used on 5.5 kv circuits Helix type current limiting fuses also offer additional advantages over other types of fuse designs: Quiet and Safe Operation: Helix type fuses are sealed static units eliminating the need for externally mounted exhaust control devices Limits Fault : By design, helix type fuses interrupt high fault currents before the first loop of fault current reaches its natural crest value. The double helix design delivers lower I t Higher Interrupting Capabilities: Helix type fuses have higher interrupting ratings than expulsion fuses because of their current limiting capabilities Indoor/Outdoor Application: Helix type fuse end caps are magneformed to the tube and sealed with resilient RTV sealant Mounting Hardware CLE type and HLE helix type current limiting fuses are designed to be used in either disconnect or nondisconnect mountings All CLE and HLE fuse units can be mounted, as supplied, in appropriate non-disconnect mountings. Adding disconnect fuse end fittings to a CLE or HLE fuse unit permits it to be mounted in an appropriate disconnect mounting Most HCL current limiting fuse units have blades to enable the fuse to be mounted in cam locking clips HCL5-900E and 750E, and BHLE fuses have end blades for direct bolting to custom bus bars or mountings AHLE and certain Heritage designs are specifically equipped for mounting in Eaton s Ampgard motor starter equipment Disconnect and nondisconnect live parts above the insulator are available for CLE, HLE and HCL cliplock fuses V14-T-0 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 Selection Helix Fuse Units Helix Fuse Mounting Maximum kv =.75 kv 5 = 5.5 kv 8 = 8. kv 15 = 15.5 kv s and Selection When a decision has been made to use current limiting fuses, the minimum amount of information required to make the proper selection is: Voltage rating rating Interrupting rating Mounting method: Non-disconnect mounting Disconnect mounting Clip-lock mounting Direct bolt-in mounting Live parts only No required mounting Refer to tables on Pages V14-T- to V14-T-41 for assistance in selecting the correct fuse catalog number. Maximum kv =.75 kv 5 = 5.5 kv 8 = 8. kv 15 = 15.5 kv Special Mounting A = Ampgard B = Bolt-in Type CLE HCL HLE Type CLE CLE1 HCL HLE These types of fuses commonly provide protection for transformer primaries. There are specific rules governing the selection of the required fuse continuous rating. The current limiting fuse application notes earlier in this publication offer suggested minimum current limiting fuse current ratings for self-cooled transformers. The suggested ratings are intended as general guidelines only. When selecting the appropriate fuse for a new installation, keep in mind that one fuse unit and one compatible mounting is required for each phase. 15 (B) CLE - 100 E (- D) Insulator G = Glass polyester P = Porcelain Continuos Amperes 10-150 15 CLE - P NM - C Class E X Hardware DM = Disconnect mounting NM = Non-disconnect mounting DL = Disconnect live parts NL = Non-disconnect live parts DF = Disconnect end fittings Size D = -inch dia. Diameter Size C =.00 in. (50.8 mm) single barrel D =.00 in. (76. mm) single barrel E =.00 in. (76. mm) double barrel F = 4.00 in. (101.6 mm) double barrel Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-1
.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses Suggested Minimum Limiting Fuse s for Self-Cooled.4 15.5 kv Transformer Applications E-Rated Fuses System Nominal kv.4 4.16 4.8 7. 1.0 1. 1.8 14.4 Fuse Maximum kv.75 5.5 5.5 8. 15.5 15.5 15.5 15.5 Transformer kva Self-Cooled Full Load Amps Fuse Amps E Full Load Amps Fuse Amps E Notes CLPT fuses. 5CLE fuses. Not FM compliant for less flammable transformer liquids. Full Load Amps Fuse Amps E Full Load Amps Fuse Amps E Full Load Amps Fuse Amps E Full Load Amps Fuse Amps E Full Load Amps Fuse Amps E Full Load Amps Three-Phase Transformer 9. 5E 1. E 1.1 E 0.7 E 0.4 1E 0.4 1E 0.4 1E 0.4 1E 15.6 10E.1 E 1.8 E 1. E 0.7 1.5E 0.7 1E 0.6 1E 0.6 1E 0 7. 15E 4. 10E.6 10E.4 5E 1.4 E 1. E 1. E 1. E 45 10.8 0E 6. 10E 5.4 10E.6 10E. 5E.0 E 1.9 E 1.8 E 75 18.0 0E 10.4 15E 9.0 15E 6.0 10E.6 10E. 5E.1 5E.0 5E 11.5 7.1 50E 15.6 5E 1.5 0E 9.0 15E 5.4 10E 4.9 10E 4.7 10E 4.5 10E 150 6.1 65E 0.8 0E 18.0 0E 1.0 0E 7. 15E 6.6 10E 6. 10E 6.0 10E 5 54.1 80E 1. 50E 7.1 50E 18.0 0E 10.8 0E 9.8 15E 9.4 15E 9.0 15E 00 7. 15E 41.6 80E 6.1 65E 4.1 40E 14.4 5E 1.1 0E 1.6 0E 1.0 0E 500 10. 00E 69.4 15E 60.1 100E 40.1 65E 4.1 50E 1.9 40E 0.9 40E 0.0 40E 750 180.4 00E 104.1 150E 90. 150E 60.1 100E 6.1 65E.8 65E 1.4 65E 0.1 65E 1000 40.6 50E 18.8 00E 10. 175E 80. 15E 48.1 80E 4.7 80E 41.8 80E 40.1 80E 1500 60.8 600E 08. 00E 180.4 00E 10. 175E 7. 15E 65.6 100E 6.8 100E 60.1 100E 000 481.1 750E 77.6 400E 40.6 50E 160.4 50E 96. 150E 87.5 150E 8.7 150E 80. 15E 500 601.4 1100E 47.0 600E 00.7 450E 00.5 00E 10. 00E 109. 175E 104.6 175E 100. 175E Single-Phase Transformer 5.08 E 1.0 E 1.04 1.5E 0.69 E 0.4 1E 0.8 1E 0.6 1E 0.5 1E 10 4.17 10E.40 5E.08 E 1.9 E 0.8 1.5E 0.76 1.5E 0.7 1.5E 0.69 1.5E 15 6.5 10E.61 10E.1 5E.08 E 1.5 E 1.14 E 1.09 E 1.04 E 5 10.4 15E 6.01 10E 5.1 10E.47 5Ev.08 5E 1.89 E 1.81 E 1.74 E 7.5 15.6 5E 9.01 15E 7.81 15E 5.1 10E.1 5E.84 5E.7 5E.60 5E 50 0.8 40E 1.0 0E 10.4 15E 6.94 10E 4.17 10E.79 10E.6 10E.47 10E 75 1.5 50E 18.0 0E 15.6 5E 10.4 15E 6.5 10E 5.68 10E 5.4 10E 5.1 10E 100 41.67 65E 4.04 50E 0.8 0E 1.89 0E 8. 15E 7.58 15E 7.5 15E 6.94 15E 167 69.58 100E 40.14 80E 4.79 65E.19 40E 1.9 5E 1.65 0E 1.10 0E 11.60 0E 50 104.17 150E 60.10 15E 5.08 100E 4.7 65E 0.8 40E 18.94 0E 18.1 0E 17.6 0E 18.75 00E 80.05 150E 69.8 15E 46.5 80E 7.75 50E 5. 50E 4.1 40E.1 40E 500 08. 00E 10.19 175E 104.17 150E 69.44 15E 41.67 80E 7.88 65E 6. 65E 4.7 65E 667 77.9 400E 160.4 50E 18.96 00E 9.64 150E 55.58 100E 50.5 80E 48. 80E 46. 80E 88 67.9 600E 1.6 00E 18.96 00E 1.64 175E 7.58 15E 66.89 15E 6.99 100E 61. 100E 150 50.8 750E 00.48 450E 60.4 400E 17.61 50E 104.17 175E 94.70 150E 90.58 150E 86.81 150E Fuse Amps E V14-T- Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 Eaton Helix Fuse I t Values 5.5 kv 8. kv 15.5 kv CLE HLE CLE HLE CLE HLE 6 ka 50 ka 6 ka Ampere Min. Melt Max. Clear Min. Melt Max. Clear Min. Melt Max. Clear Min. Melt Max. Clear 10E 70 9000 9000 70 9000 9000 70 9000 70 9000 15E 1600 1,500 1,500 1600 1,500 1,500 1600 1,500 1600 1,500 0E 000 0,000 0,000 000 0,000 0,000 000 0,000 000 0,000 5E 4500 7,000 7,000 4500 7,000 7,000 4500 7,000 4500 7,000 0E 6500 6,000 6,000 6500 6,000 6,000 6500 6,000 6500 6,000 40E 1000 0,000 0,000 1000 0,000 0,000 1000 0,000 1000 0,000 50E 1500 40,000 40,000 1500 40,000 40,000 1500 40,000 1500 40,000 65E 600 65,000 65,000 000 65,000 65,000 600 65,000 600 65,000 80E 400 10,000 10,000 5000 140,000 140,000 5000 140,000 5000 140,000 100E 6400 160,000 160,000 8500 5,000 5,000 8500 5,000 8500 5,000 15E 10,000 00,000 00,000,500 75,000 75,000,500 70,000,500 70,000 150E 6,000 0,000 45,000 0,000 5,000 5,000 4,000 450,000 175E 5,000 575,000 65,000 48,000 400,000 400,000 00E 74,000 600,000 60,000 50E 11,500 700,000 900,000 150E 0,000 450,000 175E,000 750,000 5,000 750,000 00E 5,000 900,000 900,000 5,000 900,000 4,000 900,000 50E 90,000 1,100,000 1,100,000 100,000 1,000,000 65,000 1,100,000 00E 18,500 1,600,000 1,700,000 145,000 1,00,000 1,00,000 170,000 1,700,000 50E 5,000,000,000,100,000 190,000 1,600,000 1,600,000 400E 00,000,00,000,500,000 450E 465,000,800,000,000,000 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-
.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses Product Selection CLE Type CLE Type CLE Type Limiting Fuses.75 kv Maximum (.4 kv Nominal) Performance Curves (Amperes) Barrel Number CLE Type Mountings and Hardware.75 kv Maximum (.4 kv Nominal) Ampere Fuse Mounting Type Fuse Dimensional Details Approximate Dimensions in Inches (mm) CLE Type Fuse Interrupting rms (ka Sym.) Heritage Product Indoor/ Outdoor Minimum Melting Time Total Clearing Time Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through Catalog Number 15E 1 50 H Indoor TC5650 TC5650 TC69170 CLE-15E 0E 1 50 H Indoor TC5650 TC5650 TC69170 CLE-0E 5E 1 50 H Indoor TC5650 TC5650 TC69170 CLE-5E 10E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-10E 0E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-0E 40E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-40E 50E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-50E 65E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-65E 80E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-80E 100E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-100E 15E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-15E 150E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-150E 00E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-00E 5E 1 50 H Indoor TC5686104 TC568604 TC691704 CLE-5E 50E 50 H Indoor TC569000 TC569010 TC69180 CLE-50E 00E 50 H Indoor TC569000 TC569010 TC69180 CLE-00E 50X 50 H Indoor TC569000 TC569010 TC69180 CLE-50X 400X 50 H Indoor TC569000 TC569010 TC69180 CLE-400X 450X 50 H Indoor TC569000 TC569010 TC69180 CLE-450X Voltage BIL (kv) Diameter Clip Center Length Approx. Dimensions in Inches (mm) Approximate Shipping Weight Lbs (kg) Mounting (Including Live Parts, End Fittings) Glass-Polyester Porcelain Insulator Insulator Live Parts (Including End Fittings) End Fittings (Disconnect Only) 15E 5E Non-disconnect 60.00 (50.8) 8.1 (06.5) 9.50 (41.) (0.91) CLE-PNM-C CLE-GNM-C CLE-NL-C Disconnect 60 CLE-PDM-C CLE-GDM-C CLE-DL-C CLE-DF-C 10E 50E Non-disconnect 60.00 (76.) 7.00 (177.8) 10.90 (76.9) 7 (.18) CLE-PNM-D CLE-GNM-D CLE-NL-D Disconnect 60 CLE-PDM-D CLE-GDM-D CLE-DL-D CLE-DF-D 00E 450E Non-disconnect 60.00 (76.) 7.00 (177.8) 10.90 (76.9) 15 (6.81) CLE-PNM-E CLE-GNM-E CLE-NL-E Disconnect 60 CLE-PDM-E CLE-GDM-E CLE-DL-E CLE-DF-E.1 (84.1) Ref. L L B Dia. CLE kv L B Dia. 15E 5E 9.50 (41.).00 (50.8) 10E 450E 10.90 (76.9).00 (76.) V14-T-4 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 CLE Type CLE Type Limiting Fuses 5.5 kv Maximum (4.8 kv Nominal) Performance Curves (Amperes) Barrel Number CLE Type Mountings and Hardware 5.5 kv Maximum (4.8 kv Nominal) Ampere 10E-D 5E-D 0E 50E Fuse Mounting Type Fuse Dimensional Details Approximate Dimensions in Inches (mm) CLE Type Fuse Interrupting rms (ka Sym.) Heritage Product Indoor/ Outdoor Minimum Melting Time Total Clearing Time Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through Catalog Number 15E 1 50 H Indoor TC56504 TC56504 TC69170 5CLE-15E 0E 1 50 H Indoor TC56504 TC56504 TC69170 5CLE-0E 5E 1 50 H Indoor TC56504 TC56504 TC69170 5CLE-5E 10E 1 6 Indoor/outdoor TC70548501 TC70548601 TC70548701 5CLE-10E-D 15E 1 6 Indoor/outdoor TC70548501 TC70548601 TC70548701 5CLE-15E-D 0E 1 6 Indoor/outdoor TC70548501 TC70548601 TC70548701 5CLE-0E-D 5E 1 6 Indoor/outdoor TC70548501 TC70548601 TC70548701 5CLE-5E-D 0E 1 6 Indoor/outdoor TC70548501 TC70548601 TC70548701 5CLE-0E 40E 1 50 Indoor/outdoor TC70545801 TC70545901 TC70546701 5CLE-40E 50E 1 50 Indoor/outdoor TC70545801 TC70545901 TC70546701 5CLE-50E 65E 1 50 Indoor/outdoor TC70545801 TC70545901 TC70546701 5CLE-65E 80E 1 50 Indoor/outdoor TC70545801 TC70545901 TC70546701 5CLE-80E 100E 1 50 Indoor/outdoor TC70545801 TC70545901 TC70546701 5CLE-100E 15E 1 50 Indoor/outdoor TC70545801 TC70545901 TC70546701 5CLE-15E 150E 1 6 Indoor/outdoor TC70545801 TC70545901 TC70547601 5CLE-150E 175E 1 6 Indoor/outdoor TC70545801 TC70545901 TC70547601 5CLE-175E 00E 1 6 Indoor/outdoor TC70545801 TC70545901 TC70547601 5CLE-00E 50E 1 6 Indoor/outdoor TC70545801 TC70545901 TC70547601 5CLE-50E 00E 6 Indoor/outdoor TC70546001 TC70546101 TC70547601 5CLE-00E 50E 6 Indoor/outdoor TC70546001 TC70546101 TC70547601 5CLE-50E 400E 6 Indoor/outdoor TC70546001 TC70546101 TC70547601 5CLE-400E 450E 6 Indoor/outdoor TC70546001 TC70546101 TC70547601 5CLE-450E 600E 40 Indoor TC690890 TC690890 TC6908904 5CLE-600E 750E 40 Indoor TC690890 TC690890 TC6908904 5CLE-750E 1100E 4 1 Indoor TC690890 TC690890 TC6908904 5CLE-1100E 150E 4 1 Indoor TC690890 TC690890 TC6908904 5CLE-150E Voltage BIL (kv) Diameter Clip Center Length Approx. Dimensions in Inches (mm) Approximate Shipping Weight Lbs (kg) Mounting (Including Live Parts, End Fittings) Live Parts (Including End Fittings) End Fittings (Disconnect Only) Glass-Polyester Porcelain Insulator Insulator Non-disconnect 60.00 (76.) 14.00 (55.6) 17.90 (454.7) 9 (4.09) 5CLE-PNM-D 5CLE-GNM-D CLE-NL-D Disconnect 60 5CLE-PDM-D 5CLE-GDM-D CLE-DL-D CLE-DF-D 15E 5E Non-disconnect 60.00 (50.8) 11.50 (9.1) 1.90 (7.7) (1.6) 5CLE-PNM-C 5CLE-GNM-C CLE-NL-C Disconnect 60 5CLE-PDM-C 5CLE-GDM-C CLE-DL-C CLE-DF-C 00E 450E Non-disconnect 60.00 (76.) 14.00 (55.6) 17.90 (454.7) 19 (8.6) 5CLE-PNM-E 5CLE-GNM-E CLE-NL-E Disconnect 60 5CLE-PDM-E 5CLE-GDM-E CLE-DL-E CLE-DF-E 600E and 750E Consult factory 60 4.00 (101.6) N/A N/A 40 (18.16) 1100E and 150E Consult factory 4.00 (101.6) N/A N/A 80 (6.).1 (84.1) Ref. L L B Dia. CLE kv L B Dia. 15E 5E 1.90 (7.7).00 (50.8) 10E 450E 17.90 (454.7).00 (76.) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-5
.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses CLE Type CLE Type Limiting Fuses 8. kv Maximum (7. kv Nominal) Performance Curves (Amperes) Barrel Number CLE Type Mountings and Hardware 8. kv Maximum (7. kv Nominal) Ampere Fuse Mounting Type Fuse Dimensional Details Approximate Dimensions in Inches (mm) CLE Type Fuse Interrupting rms (ka Sym.) Heritage Product Indoor/ Outdoor Minimum Melting Time Total Clearing Time Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through Catalog Number 15E 1 50 H Indoor TC56504 TC56504 TC69170 8CLE-15E 0E 1 50 H Indoor TC56504 TC56504 TC69170 8CLE-0E 5E 1 50 H Indoor TC56504 TC56504 TC69170 8CLE-5E 10E 1 50 Indoor/outdoor TC70548501 TC70548601 TC70548801 8CLE-10E-D 15E 1 50 Indoor/outdoor TC70548501 TC70548601 TC70548801 8CLE-15E-D 0E 1 50 Indoor/outdoor TC70548501 TC70548601 TC70548801 8CLE-0E-D 5E 1 50 Indoor/outdoor TC70548501 TC70548601 TC70548801 8CLE-5E-D 0E 1 50 Indoor/outdoor TC70548501 TC70548601 TC70548801 8CLE-0E 40E 1 50 Indoor/outdoor TC7054601 TC7054601 TC7054701 8CLE-40E 50E 1 50 Indoor/outdoor TC7054601 TC7054601 TC7054701 8CLE-50E 65E 1 50 Indoor/outdoor TC7054601 TC7054601 TC7054701 8CLE-65E 80E 1 50 Indoor/outdoor TC7054601 TC7054601 TC7054701 8CLE-80E 100E 1 50 Indoor/outdoor TC7054601 TC7054601 TC7054701 8CLE-100E 15E 1 50 Indoor/outdoor TC7054601 TC7054601 TC7054701 8CLE-15E 150E 1 50 Indoor/outdoor TC7054601 TC7054601 TC7054701 8CLE-150E 175E 1 50 Indoor/outdoor TC7054601 TC7054601 TC7054701 8CLE-175E 00E 50 Indoor/outdoor TC70546401 TC70546501 TC7054701 8CLE-00E 50E 50 Indoor/outdoor TC70546401 TC70546501 TC7054701 8CLE-50E 00E 50 Indoor/outdoor TC70546401 TC70546501 TC7054701 8CLE-00E 50E 50 Indoor/outdoor TC70546401 TC70546501 TC7054701 8CLE-50E Voltage BIL (kv) Diameter Clip Center Length Approx. Dimensions in Inches (mm) Approximate Shipping Weight Lbs (kg) Mounting (Including Live Parts, End Fittings) Live Parts (Including End Fittings) End Fittings (Disconnect Only) Glass-Polyester Porcelain Insulator Insulator 15E 5E Non-disconnect 75.00 (50.8) 14.00 (55.6) 15.50 (9.7) (1.6) 8CLE-PNM-C 8CLE-GNM-C CLE-NL-C Disconnect 75 8CLE-PDM-C 8CLE-GDM-C CLE-DL-C CLE-DF-C 10E-D 5E-D Non-disconnect 75.00 (76.) 14.00 (55.6) 17.90 (454.7) 9 (4.09) 8CLE-PNM-D 8CLE-GNM-D CLE-NL-D 0E 175E Disconnect 75 8CLE-PDM-D 8CLE-GDM-D CLE-DL-D CLE-DF-D 00E 50E Non-disconnect 75.00 (76.) 14.00 (55.6) 17.90 (454.7) 19 (8.6) 8CLE-PNM-E 8CLE-GNM-E CLE-NL-E Disconnect 75 8CLE-PDM-E 8CLE-GDM-E CLE-DL-E CLE-DF-E.1 (84.1) Ref. L L B Dia. CLE kv L B Dia. 15E 5E 15.50 (9.7).00 (50.8) 10E 50E 17.90 (454.7).00 (76.) V14-T-6 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 CLE Type CLE Type Limiting Fuses 15.5 kv Maximum (14.4 kv Nominal) Performance Curves (Amperes) Barrel Number CLE Type Mountings and Hardware 15.5 kv Maximum (14.4 kv Nominal) Fuse Dimensional Details Approximate Dimensions in Inches (mm) CLE Type Fuse Interrupting rms (ka Sym.) Heritage Product Indoor/ Outdoor Minimum Melting Time Total Clearing Time Notes For mountings, consult factory. See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through Catalog Number 15E 1 1.5 H Indoor TC56504 TC56504 TC69170 15CLE-15E 0E 1 1.5 H Indoor TC56504 TC56504 TC69170 15CLE-0E 5E 1 1.5 H Indoor TC56504 TC56504 TC69170 15CLE-5E 10E 1 6 Indoor/outdoor TC70548501 TC70548601 TC7054880 15CLE-10E-D 15E 1 6 Indoor/outdoor TC70548501 TC70548601 TC7054880 15CLE-15E-D 0E 1 6 Indoor/outdoor TC70548501 TC70548601 TC7054880 15CLE-0E-D 5E 1 6 Indoor/outdoor TC70548501 TC70548601 TC7054880 15CLE-5E-D 0E 1 6 Indoor/outdoor TC70548501 TC70548601 TC7054880 15CLE-0E 40E 1 6 Indoor/outdoor TC70546801 TC70546901 TC70547501 15CLE-40E 50E 1 6 Indoor/outdoor TC70546801 TC70546901 TC70547501 15CLE-50E 65E 1 6 Indoor/outdoor TC70546801 TC70546901 TC70547501 15CLE-65E 80E 1 6 Indoor/outdoor TC70546801 TC70546901 TC70547501 15CLE-80E 100E 1 6 Indoor/outdoor TC70546801 TC70546901 TC70547501 15CLE-100E 15E 1 6 Indoor/outdoor TC70546801 TC70546901 TC70547501 15CLE-15E 150E 1 6 Indoor/outdoor TC70546801 TC70546901 TC70547501 15CLE-150E 175E 6 Indoor/outdoor TC70547001 TC70547101 TC70547501 15CLE-175E 00E 6 Indoor/outdoor TC70547001 TC70547101 TC70547501 15CLE-00E 50E 6 Indoor/outdoor TC70547001 TC70547101 TC70547501 15CLE-50E 00E 6 Indoor/outdoor TC70547001 TC70547101 TC70547501 15CLE-00E 80E 85 H Indoor TC598780 TC5987840 TC691604 15CLE-80E 100E 85 H Indoor TC598780 TC5987840 TC691604 15CLE-100E 15X 85 H Indoor TC598780 TC5987840 TC691604 15CLE-15X 150E 50 H Indoor TC598780 TC5987840 TC691604 15CLE-150E 175E/00X 50 H Indoor TC598780 TC5987840 TC691604 15CLE-175E/00X Mounting (Including Live Parts, End Fittings) Live Parts (Including End Fittings) End Fittings (Disconnect Only) Fuse Clip Approximate Glass-Polyester Ampere Mounting Voltage Diameter Center Length Shipping Porcelain Insulator Insulator Type BIL (kv) Approx. Dimensions in Inches (mm) Weight Lbs (kg) 15E 5E Non-disconnect 95.00 (50.8) 0.00 (508.0) 1.50 (546.1) 4.5 (.04) 15CLE-PNM-C 15CLE-GNM-C CLE-NL-D 110 15CLE-HPNM-C Disconnect 95 15CLE-PDM-C 15CLE-GDM-C CLE-DL-C CLE-DF-C 110 15CLE-HPDM-C 10E-D 5E-D Non-disconnect 95.00 (76.) 0.00 (508.0).90 (607.1) 11 (4.99) 15CLE-PNM-D 15CLE-GNM-D CLE-NL-D 0E 150E 110 15CLE-HPM-D Disconnect 95 15CLE-PDM-D 15CLE-GNM-D CLE-DL-D CLE-DF-D 110 15CLE-HPDM-D 175E 00E Non-disconnect 110.00 (76.) 0.00 (508.0).90 (607.1) (10.44) 15CLE-PNM-E CLE-DL-E CLE-DF-E Disconnect 110 15CLE-PDM-E.1 (84.1) Ref. L L B Dia. CLE kv L B Dia. 15E 5E 1.50 (546.1).00 (50.8) 10E 00E.90 (607.1).00 (76.) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-7
.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses HLE Type HLE Type HLE Type Limiting Fuses 5.5 kv Maximum (4.8 kv Nominal) Interrupting 6 (ka rms Sym.) Performance Curves (Amperes) Barrel Number HLE Type Mountings and Hardware 5.5 kv Maximum (4.8 kv Nominal) Ampere Fuse Mounting Type Fuse Dimensional Details Approximate Dimensions in Inches (mm) HLE Type Fuse Indoor/ Outdoor Minimum Melting Time Total Clearing Time Peak Let-Through Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Catalog Number 10E 1 Indoor/outdoor TC70548507 TC70548607 TC7054870 5HLE-10E 15E 1 Indoor/outdoor TC70548507 TC70548607 TC7054870 5HLE-15E 0E 1 Indoor/outdoor TC70548507 TC70548607 TC7054870 5HLE-0E 5E 1 Indoor/outdoor TC70548507 TC70548607 TC7054870 5HLE-5E 0E 1 Indoor/outdoor TC70548507 TC70548607 TC7054870 5HLE-0E 40E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-40E 50E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-50E 65E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-65E 80E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-80E 100E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-100E 15E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-15E 150E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-150E 175E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-175E 00E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-00E 50E 1 Indoor/outdoor TC70545805 TC70545905 TC7054760 5HLE-50E 00E Indoor/outdoor TC70546005 TC70546105 TC7054760 5HLE-00E 50E Indoor/outdoor TC70546005 TC70546105 TC7054760 5HLE-50E 400E Indoor/outdoor TC70546005 TC70546105 TC7054760 5HLE-400E 450E Indoor/outdoor TC70546005 TC70546105 TC7054760 5HLE-450E Voltage BIL (kv) Diameter Clip Center Length Approx. Dimensions in Inches (mm) Approximate Shipping Weight Lbs (kg) Mounting (Including Live Parts, End Fittings) Live Parts (Including End Fittings) End Fittings (Disconnect Only) Glass-Polyester Porcelain Insulator Insulator 10E 50E Non-disconnect 60.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) 5HLE-PNM-D 5HLE-GNM-D CLE-NL-D Disconnect 60 5HLE-PDM-D 5HLE-GDM-D CLE-DL-D CLE-DF-D 00E 450E Non-disconnect 60.00 (76.) 1.00 (04.8) 15.90 (40.9) 17 (7.7) 5HLE-PNM-E 5HLE-GNM-E CLE-NL-E Disconnect 60 5HLE-PDM-E 5HLE-GDM-E CLE-DL-E CLE-DF-D.1 (84.1) L ± 0.0 L ± 0.0.00 (76.) Dia. HLE kv L ± 0.0 5.5 15.88 (40.4) V14-T-8 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 HLE Type HLE Type Limiting Fuses 8. kv Maximum (7. kv Nominal) Interrupting 50 (ka Sym.) Performance Curves (Amperes) Barrel Number HLE Type Mountings and Hardware 8. kv Maximum (7. kv Nominal) Ampere Fuse Mounting Type Fuse Dimensional Details Approximate Dimensions in Inches (mm) HLE Type Fuse Indoor/ Outdoor Minimum Melting Time Total Clearing Time Peak Let-Through Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Catalog Number 10E 1 Indoor/outdoor TC70548507 TC70548607 TC70548804 8HLE-10E 15E 1 Indoor/outdoor TC70548507 TC70548607 TC70548804 8HLE-15E 0E 1 Indoor/outdoor TC70548507 TC70548607 TC70548804 8HLE-0E 5E 1 Indoor/outdoor TC70548507 TC70548607 TC70548804 8HLE-5E 0E 1 Indoor/outdoor TC70548507 TC70548607 TC70548804 8HLE-0E 40E 1 Indoor/outdoor TC705460 TC705460 TC7054701 8HLE-40E 50E 1 Indoor/outdoor TC705460 TC705460 TC7054701 8HLE-50E 65E 1 Indoor/outdoor TC705460 TC705460 TC7054701 8HLE-65E 80E 1 Indoor/outdoor TC705460 TC705460 TC7054701 8HLE-80E 100E 1 Indoor/outdoor TC705460 TC705460 TC7054701 8HLE-100E 15E 1 Indoor/outdoor TC705460 TC705460 TC7054701 8HLE-15E 150E 1 Indoor/outdoor TC705460 TC705460 TC7054701 8HLE-150E 175E 1 Indoor/outdoor TC705460 TC705460 TC7054701 8HLE-175E 00E Indoor/outdoor TC7054640 TC7054650 TC7054701 8HLE-00E 50E Indoor/outdoor TC7054640 TC7054650 TC7054701 8HLE-50E 00E Indoor/outdoor TC7054640 TC7054650 TC7054701 8HLE-00E 50E Indoor/outdoor TC7054640 TC7054650 TC7054701 8HLE-50E Voltage BIL (kv) Diameter Clip Center Length Approx. Dimensions in Inches (mm) Approximate Shipping Weight Lbs (kg) Mounting (Including Live Parts, End Fittings) Live Parts (Including End Fittings) End Fittings (Disconnect Only) Glass-Polyester Porcelain Insulator Insulator 10E 175E Non-disconnect 75.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) 8HLE-PNM-D 8HLE-GNM-D CLE-NL-D Disconnect 75 8HLE-PDM-D 8HLE-GDM-D CLE-DL-D CLE-DF-D 00E 50E Non-disconnect 75 8HLE-PNM-E 8HLE-GNM-E CLE-NL-E Disconnect 75 8HLE-PDM-E 8HLE-GDM-E CLE-DL-E CLE-DF-E.1 (84.1) L ± 0.0 L ± 0.0.00 (76.) Dia. HLE kv L ± 0.0 8. 15.88 (40.4) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-9
.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses HLE Type HLE Type Limiting Fuses 15.5 kv Maximum (14.4 kv Nominal) Performance Curves (Amperes) Barrel Number HLE Type Mountings and Hardware 15.5 kv Maximum (14.4 kv Nominal) Ampere Fuse Mounting Type Fuse Dimensional Details Approximate Dimensions in Inches (mm) HLE Type Fuse Interrupting rms (ka Sym.) Indoor/ Outdoor Minimum Melting Time Total Clearing Time Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through Catalog Number 10E 1 6 Indoor/outdoor TC70548507 TC70548607 TC70548805 15HLE-10E 15E 1 6 Indoor/outdoor TC70548507 TC70548607 TC70548805 15HLE-15E 0E 1 6 Indoor/outdoor TC70548507 TC70548607 TC70548805 15HLE-0E 5E 1 6 Indoor/outdoor TC70548507 TC70548607 TC70548805 15HLE-5E 0E 1 6 Indoor/outdoor TC70548507 TC70548607 TC70548805 15HLE-0E 40E 1 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-40E 50E 1 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-50E 65E 1 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-65E 80E 1 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-80E 100E 1 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-100E 15E 1 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-15E 150E 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-150E 175E 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-175E 00E 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-00E 50E 6 Indoor/outdoor TC70546601 TC70546701 TC70547401 15HLE-50E Voltage BIL (kv) Diameter Clip Center Length Approx. Dimensions in Inches (mm) Approximate Shipping Weight Lbs (kg) Mounting (Including Live Parts, End Fittings) Live Parts (Including End Fittings) End Fittings (Disconnect Only) Glass-Polyester Porcelain Insulator Insulator 10E 175E Non-disconnect 95.00 (76.) 15.00 (81.0) 18.90 (480.1) 10 (4.54) 15HLE-PNM-D 15HLE-GNM-D CLE-NL-D Disconnect 95 15HLE-PDM-D 15HLE-GDM-D CLE-DL-D CLE-DF-D 150E 50E Non-disconnect 95.00 (76.) 15.00 (81.0) 18.90 (480.1) 1 (9.5) 15HLE-PNM-E CLE-NL-E Disconnect 95 15HLE-PDM-E CLE-DL-E CLE-DF-E.1 (84.1) L ± 0.0 L ± 0.0.00 (76.) Dia. HLE kv L ± 0.0 15.5 18.88 (479.6) V14-T-0 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 LHLE Type LHLE Type LHLE Type Limiting Fuses 15.5 kv Maximum (14.4 kv Nominal) Indoor/Outdoor. (Amperes) Barrel Number LHLE Type Mountings and Hardware 15.5 kv Maximum (14.4 kv Nominal) Ampere 65E 150E Single barrel 15E 00E Double barrel Fuse Dimensional Details Approximate Dimensions in Inches (mm) LHLE Type Fuse.1 (84.1) Fuse Mounting Type Approximate Dimensions in Inches (mm) Diameter Length Approximate Shipping Weight Lbs (kg) Performance Curves Minimum Melting Time Total Clearing Time Peak Let-Through Catalog Number 65E 1.00 (76.) 0.5 (51.5) 10.5 (4.80) TC66700 TC66700 TC70547404 15LHLE-65E 80E 1.00 (76.) 0.5 (51.5) 10.5 (4.80) TC66700 TC66700 TC70547404 15LHLE-80E 100E 1.00 (76.) 0.5 (51.5) 10.5 (4.80) TC66700 TC66700 TC70547404 15LHLE-100E 15E 1.00 (76.) 0.5 (51.5) 10.5 (4.80) TC66700 TC66700 TC70547404 15LHLE-15E 150E 1.00 (76.) 0.5 (51.5) 10.5 (4.80) TC66700 TC66700 TC70547404 15LHLE-150E 15E.00 (76.) 0.5 (51.5) 1.0 (9.50) TC66700 TC66700 TC70547404 15LHLE-15E 150E.00 (76.) 0.5 (51.5) 1.0 (9.50) TC66700 TC66700 TC70547404 15LHLE-150E 175E.00 (76.) 0.5 (51.5) 1.0 (9.50) TC66700 TC66700 TC70547404 15LHLE-175E 00E.00 (76.) 0.5 (51.5) 1.0 (9.50) TC66700 TC66700 TC70547404 15LHLE-00E 50E.00 (76.) 0.5 (51.5) 1.0 (9.50) TC66700 TC66700 TC70547404 15LHLE-50E 00E.00 (76.) 0.5 (51.5) 1.0 (9.50) TC66700 TC66700 TC70547404 15LHLE-00E Diameter Clip Center Length Live Parts (Including End Fittings) End Fittings (Disconnect Only) Approximate Dimensions in Inches (mm) Non-disconnect.00 (76.) 18.00 (457.0) 0.5 (51.5) CLE-NL-D Disconnect CLE-DL-D CLE-DF-D Non-disconnect.00 (76.) 18.00 (457.0) 0.5 (51.5) CLE-NL-E Disconnect CLE-DL-E CLE-DF-E L ± 0.0 L ± 0.0.00 (76.) Dia. LHLE kv L ± 0.0 15.5 0.5 (51.5) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-1
.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses AHLE Type 5AHLE Type -Limiting Fuse Units 5.5 kv Maximum (4.8 kv Nominal) Approximate Performance Curves Barrel Interrupting Shipping Minimum Total (Amperes) Number rms (ka Sym.) Weight Lbs (kg) Melting Time Clearing Time Note: These fuses are equipped for mounting in Eaton Ampgard motor starting assemblies. Peak Let-Through Catalog Number 10E 1 6 8 (.6) TC70548507 TC70548607 TC7054870 5AHLE-10E 15E 1 6 8 (.6) TC70548507 TC70548607 TC7054870 5AHLE-15E 0E 1 6 8 (.6) TC70548507 TC70548607 TC7054870 5AHLE-0E 5E 1 6 8 (.6) TC70548507 TC70548607 TC7054870 5AHLE-5E 0E 1 6 8 (.6) TC70548507 TC70548607 TC7054870 5AHLE-0E 40E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-40E 50E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-50E 65E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-65E 80E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-80E 100E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-100E 15E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-15E 150E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-150E 175E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-175E 00E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-00E 50E 1 6 8 (.6) TC70545805 TC70545905 TC7054760 5AHLE-50E 00E 6 17 (7.8) TC70546005 TC70546105 TC7054760 5AHLE-00E 50E 6 17 (7.8) TC70546005 TC70546105 TC7054760 5AHLE-50E 400E 6 17 (7.8) TC70546005 TC70546105 TC7054760 5AHLE-400E 450E 6 17 (7.8) TC70546005 TC70546105 TC7054760 5AHLE-450E 8AHLE Type -Limiting Fuse Units 8. kv Maximum (7. kv Nominal) Approximate Performance Curves Barrel Interrupting Shipping Minimum Total (Amperes) Number rms (ka Sym.) Weight Lbs (kg) Melting Time Clearing Time Peak Let-Through Catalog Number 10E 1 50 8 (.6) TC70548507 TC70548607 TC70548804 8AHLE-10E 15E 1 50 8 (.6) TC70548507 TC70548607 TC70548804 8AHLE-15E 0E 1 50 8 (.6) TC70548507 TC70548607 TC70548804 8AHLE-0E 5E 1 50 8 (.6) TC70548507 TC70548607 TC70548804 8AHLE-5E 0E 1 50 8 (.6) TC70548507 TC70548607 TC70548804 8AHLE-0E 40E 1 50 8 (.6) TC705460 TC705460 TC7054701 8AHLE-40E 50E 1 50 8 (.6) TC705460 TC705460 TC7054701 8AHLE-50E 65E 1 50 8 (.6) TC705460 TC705460 TC7054701 8AHLE-65E 80E 1 50 8 (.6) TC705460 TC705460 TC7054701 8AHLE-80E 100E 1 50 8 (.6) TC705460 TC705460 TC7054701 8AHLE-100E 15E 1 50 8 (.6) TC705460 TC705460 TC7054701 8AHLE-15E 150E 1 50 8 (.6) TC705460 TC705460 TC7054701 8AHLE-150E 175E 1 50 8 (.6) TC705460 TC705460 TC7054701 8AHLE-175E 00E 50 17 (7.8) TC7054640 TC7054650 TC7054701 8AHLE-00E 50E 50 17 (7.8) TC7054640 TC7054650 TC7054701 8AHLE-50E 00E 50 17 (7.8) TC7054640 TC7054650 TC7054701 8AHLE-00E 50E 50 17 (7.8) TC7054640 TC7054650 TC7054701 8AHLE-50E V14-T- Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 BHLE Type BHLE Type Limiting Fuses 5.5 kv Maximum (4.8 kv Nominal), Indoor, Bolt-In Interrupting Diameter Length Approximate Performance Curves Barrel rms Approximate Dimensions Shipping Minimum Total (Amperes) Number (ka Sym.) in Inches (mm) Weight Lbs (kg) Melting Time Clearing Time Fuse Dimensional Details Approximate Dimensions in Inches (mm) 5BHLE Type Fuse Single Barrel Peak Let-Through 5BHLE Type Fuse Double Barrel Catalog Number 10E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC7054870 5BHLE-10E 15E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC7054870 5BHLE-15E 0E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC7054870 5BHLE-0E 5E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC7054870 5BHLE-5E 0E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC7054870 5BHLE-0E 40E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-40E 50E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-50E 65E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-65E 80E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-80E 100E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-100E 15E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-15E 150E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-150E 175E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-175E 00E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-00E 50E 1 6.00 (76.) 15.90 (40.9) 8 (.6) TC70545805 TC70545905 TC7054760 5BHLE-50E 00E 6.00 (76.) 15.90 (40.9) 17 (7.7) TC70546005 TC70546105 TC7054760 5BHLE-00E 50E 6.00 (76.) 15.90 (40.9) 17 (7.7) TC70546005 TC70546105 TC7054760 5BHLE-50E 400E 6.00 (76.) 15.90 (40.9) 17 (7.7) TC70546005 TC70546105 TC7054760 5BHLE-400E 450E 6.00 (76.) 15.90 (40.9) 17 (7.7) TC70546005 TC70546105 TC7054760 5BHLE-450E.00 (76.) Ref..1 (5.8) 17.88 (454.) 0.06 19.5 (488.9) Ref. 17.88 (454.) 0.06 19.5 (488.9) Ref. Indicator to be Located Here.1 (84.1).00 (76.) Ref..1 (5.8) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-
.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses BHLE Type Limiting Fuses 8. kv Maximum (7. kv Nominal), Indoor, Bolt-In Interrupting Diameter Length Approximate Performance Curves Barrel rms Approximate Dimensions Shipping Minimum Total (Amperes) Number (ka Sym.) in Inches (mm) Weight Lbs (kg) Melting Time Clearing Time Fuse Dimensional Details Approximate Dimensions in Inches (mm) 8BHLE Type Fuse Single Barrel Peak Let-Through 8BHLE Type Fuse Double Barrel Catalog Number 10E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC70548804 8BHLE-10E 15E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC70548804 8BHLE-15E 0E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC70548804 8BHLE-0E 5E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC70548804 8BHLE-5E 0E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC70548507 TC70548607 TC70548804 8BHLE-0E 40E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC705460 TC705460 TC7054701 8BHLE-40E 50E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC705460 TC705460 TC7054701 8BHLE-50E 65E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC705460 TC705460 TC7054701 8BHLE-65E 80E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC705460 TC705460 TC7054701 8BHLE-80E 100E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC705460 TC705460 TC7054701 8BHLE-100E 15E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC705460 TC705460 TC7054701 8BHLE-15E 150E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC705460 TC705460 TC7054701 8BHLE-150E 175E 1 50.00 (76.) 15.90 (40.9) 8 (.6) TC705460 TC705460 TC7054701 8BHLE-175E 00E 50.00 (76.) 15.90 (40.9) 17 (7.7) TC7054640 TC7054650 TC7054701 8BHLE-00E 50E 50.00 (76.) 15.90 (40.9) 17 (7.7) TC7054640 TC7054650 TC7054701 8BHLE-50E 00E 50.00 (76.) 15.90 (40.9) 17 (7.7) TC7054640 TC7054650 TC7054701 8BHLE-00E 50E 50.00 (76.) 15.90 (40.9) 17 (7.7) TC7054640 TC7054650 TC7054701 8BHLE-50E.00 (76.) Ref..1 (5.8) 17.88 (454.) 0.06 19.5 (488.9) Ref. 17.88 (454.) 0.06 19.5 (488.9) Ref. Indicator to be Located Here.1 (84.1).00 (76.) Ref..1 (5.8) V14-T-4 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 BHLE Type Limiting Fuses 15.5 kv Maximum (14.4 kv Nominal), Indoor/Outdoor, Bolt-In Interrupting Diameter Length Approximate Performance Curves Barrel rms Approximate Dimensions Shipping Minimum Total Peak Let-Through (Amperes) Number (ka Sym.) in Inches (mm) Weight Lbs (kg) Melting Time Clearing Time Fuse Dimensional Details Approximate Dimensions in Inches (mm) 15BHLE Type Fuse Single Barrel 15BHLE Type Fuse Double Barrel Catalog Number 10E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70548507 TC70548607 TC70548805 15BHLE-10E 15E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70548507 TC70548607 TC70548805 15BHLE-15E 0E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70548507 TC70548607 TC70548805 15BHLE-0E 5E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70548507 TC70548607 TC70548805 15BHLE-5E 0E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70548507 TC70548607 TC70548805 15BHLE-0E 40E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70546601 TC70546701 TC70547401 15BHLE-40E 50E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70546601 TC70546701 TC70547401 15BHLE-50E 65E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70546601 TC70546701 TC70547401 15BHLE-65E 80E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70546601 TC70546701 TC70547401 15BHLE-80E 100E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70546601 TC70546701 TC70547401 15BHLE-100E 15E 1 6.00 (76.) 18.90 (480.1) 10 (4.54) TC70546601 TC70546701 TC70547401 15BHLE-15E 150E 6.00 (76.) 18.90 (480.1) 1 (9.5) TC70546601 TC70546701 TC70547401 15BHLE-150E 175E 6.00 (76.) 18.90 (480.1) 1 (9.5) TC70546601 TC70546701 TC70547401 15BHLE-175E 00E 6.00 (76.) 18.90 (480.1) 1 (9.5) TC70546601 TC70546701 TC70547401 15BHLE-00E 50E 6.00 (76.) 18.90 (480.1) 1 (9.5) TC70546601 TC70546701 TC70547401 15BHLE-50E.00 (76.) Ref..1 (5.8) 0.88 (50.4) 0.06.5 (565.) Ref. 1.5 (8.9).00 (76.) Ref..1 (84.1) 0.88 (50.4) 0.06.5 (565.) Ref..00 (76.) Ref..56 (90.4).1 (5.8) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-5
.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses HCL Type HCL Type Limiting Fuses 5.5 kv Maximum (4.8 kv Nominal), Indoor (Amperes) Barrel Number Interrupting rms (ka Sym.) Approximate Diameter in Inches (mm) Clip Center Approximate Shipping Weight Lbs (kg) Mounting Type Live Parts (Includes End Fittings) HCL Type Limiting Fuses (15.5 kv Maximum, 14.4 kv Nominal), Indoor Performance Curves Minimum Melting Time Total Clearing Time Peak Let-Through Catalog Number 10E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC70548505 TC70548605 TC7054870 5HCL-10E 15E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC70548505 TC70548605 TC7054870 5HCL-15E 0E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC70548505 TC70548605 TC7054870 5HCL-0E 5E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC70548505 TC70548605 TC7054870 5HCL-5E 0E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC70548505 TC70548605 TC7054870 5HCL-0E 40E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC7054580 TC7054590 TC7054760 5HCL-40E 50E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC7054580 TC7054590 TC7054760 5HCL-50E 65E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC7054580 TC7054590 TC7054760 5HCL-65E 80E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC7054580 TC7054590 TC7054760 5HCL-80E 100E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC7054580 TC7054590 TC7054760 5HCL-100E 15E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC7054580 TC7054590 TC7054760 5HCL-15E 150E 1 6.00 (76.) Clip-lock 9 (4.09) Non-disconnect HCL-NL-1 TC7054580 TC7054590 TC7054760 5HCL-150E 00E 1 6.00 (76.) Clip-lock 10 (4.54) Non-disconnect HCL-NL-1 TC7054580 TC7054590 TC7054760 5HCL-00E 50E 1 6.00 (76.) Clip-lock 10 (4.54) Non-disconnect HCL-NL-1 TC7054580 TC7054590 TC7054760 5HCL-50E 00E 6.00 (76.) Clip-lock 0 (9.08) Non-disconnect HCL-NL-1 TC7054600 TC7051610 TC7054760 5HCL-00E 400E 6.00 (76.) Clip-lock 0 (9.08) Non-disconnect HCL-NL-1 TC7054600 TC7051610 TC7054760 5HCL-400E 450E 6.00 (76.) Clip-lock 0 (9.08) Non-disconnect HCL-NL-1 TC7054600 TC7051610 TC7054760 5HCL-450E 500E 6.00 (76.) Clip-lock 0 (9.08) Non-disconnect HCL-NL-1 TC6670401 TC6670501 TC6670701 5HCL-500E 600E 6.00 (76.) Clip-lock 0 (9.08) Non-disconnect HCL-NL-1 TC6670401 TC6670501 TC6670701 5HCL-600E 750E 6.00 (76.) Bolt-in 0 (1.6) TC6670401 TC6670501 TC6670701 5HCL-750E 6.00 (76.) Bolt-in 0 (1.6) TC6670401 TC6670501 TC6670701 5BHCL-750E 900E 6.00 (76.) Bolt-in 0 (1.6) TC6670401 TC6670501 TC6670701 5HCL-900E 6.00 (76.) Bolt-in 0 (1.6) TC6670401 TC6670501 TC6670701 5BHCL-900E (Amperes) Barrel Number Interrupting rms (ka Sym.) Approximate Diameter in Inches Clip (mm) Center Approximate Shipping Weight Lbs (kg) Mounting Type Live Parts (Includes End Fittings) Performance Curves Minimum Melting Time Total Clearing Time Peak Let-Through Catalog Number 10E 1 6.00 (76.) Clip-lock 10 (4.54) Non-disconnect HCL-NL-1 TC7054850 TC7054860 TC7054880 15HCL-10E 15E 1 6.00 (76.) Clip-lock 10 (4.54) Non-disconnect HCL-NL-1 TC7054850 TC7054860 TC7054880 15HCL-15E 0E 1 6.00 (76.) Clip-lock 10 (4.54) Non-disconnect HCL-NL-1 TC7054850 TC7054860 TC7054880 15HCL-0E 5E 1 6.00 (76.) Clip-lock 10 (4.54) Non-disconnect HCL-NL-1 TC7054850 TC7054860 TC7054880 15HCL-5E 0E 1 6.00 (76.) Clip-lock 10 (4.54) Non-disconnect HCL-NL-1 TC7054850 TC7054860 TC7054880 15HCL-0E 40E 1 6.00 (76.) Clip-lock 10 (4.54) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-40E 50E 1 6.00 (76.) Clip-lock 10 (4.54) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-50E 65E 1 50.00 (76.) Clip-lock 1 (5.45) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-65E 80E 1 50.00 (76.) Clip-lock 1 (5.45) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-80E 100E 1 50.00 (76.) Clip-lock 1 (5.45) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-100E 15E 1 50.00 (76.) Clip-lock 1 (5.45) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-15E 150E 50.00 (76.) Clip-lock 4 (10.90) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-150E 00E 50.00 (76.) Clip-lock 4 (10.90) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-00E 50E 50.00 (76.) Clip-lock 4 (10.90) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-50E 00E 50.00 (76.) Clip-lock 4 (10.90) Non-disconnect HCL-NL-1 TC667001 TC667001 TC7054740 15HCL-00E V14-T-6 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 Fuse Dimensional Details Approximate Dimensions in Inches (mm) 5.5 and 15.5 kv Clip Lock Mounted Ampere Number of Barrels 15.5 kv Clip Lock Mounted Bolt-In Series 5.5 kv Figure Number A B C 5.5 kv Maximum Clip Lock Style 15.5-Inch (87.4 mm) Clip Centers.00-Inch (76. mm) Barrel Diameter 10E 150E 1 A 16.81 (47.0) 16.1 (409.4) 6 5.5 kv Maximum Clip Lock Style 1.5-Inch (59.8 mm) Clip Centers.00-Inch (76. mm) Barrel Diameter 00E 600E 1 A.81 (579.4).1 (561.8) 6 Ampere Number of Barrels Figure Number A B C 15.5 kv Maximum Clip Lock Style 1.5-Inch (59.8 mm) Clip Centers.00-Inch (76. mm) Barrel Diameter 65E 15E 1 A.81 (579.4).1 (561.8) 6 150E 00E B.81 (579.4).1 (561.8) 50 15.5 kv Maximum Clip Lock Style 18.5-Inch (46.6 mm) Clip Centers.00-Inch (76. mm) Barrel Diameter 10E 50E 1 A 19.81 (50.) 19.1 (485.6) 6 Ampere Number of Barrels Figure Number A B C D 5.5 kv Maximum Bolt-in Style.7-Inch (60.7 mm) Hole Centers.00-Inch (76. mm) Barrel Diameter 750E, 900E C 5.11 (67.8).7 (568.).7 (60.7) 6 Interrupting rms (ka Sym.) Interrupting rms (ka Sym.) Interrupting rms (ka Sym.) HCL-14 Type Fuse 1.50 (8.1) 1.5 (1.8) 1.5 (1.8) HCL Type Fuse Note 0.5 (1.7) tripped force lb (0.9 kg). A B A B A 0.44 x 0.91 (11. x.1) Slots C 1.5 (1.8) B C 1.5 (1.8) C D 16.8 (416.1) 0.06 for HCL-8 19.8 (49.) 0.06 for HCL-15 Figure A Figure B Indicator Flush with Surface in Untripped Position 4.1 (109.5) Blown Fuse Indicator 11.6 (95.1) 1.50 (8.1) 0.44 Dia. Hole (11.) Figure C 0.5 (6.4).00 (76.) Indicator Flush with Surface in Untripped Position Blown Fuse Indicator 7.94 (01.7) 0.5 (6.4).00 (76.) Indicator Flush with Surface in Untripped Position Blown Fuse Indicator 0.8 (9.7).00 (76.) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-7
V14-T-8 Volume 14 Fuses CA08100016E August 011 www.eaton.com.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses Mounting Details Approximate Dimensions in Inches (mm) CLE and HLE Type Disconnect Type Mountings D D E E A C B G F
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 Approximate Dimensions in Inches (mm) CLE and HLE Type Disconnect Mounting Single Catalog Number Hole Centers A Hole Centers B Overall Length C CLE and HLE Type Non-Disconnect Mounting Double Hole Inset D Hole Centers E Contact Height F Overall Height G CLE-GDM-C 9.7 (8.0) 6.00 (15.4).1 (56.1) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 9.75 (47.6) 60 CLE-GDM-D 8.4 (09.) 6.00 (15.4) 18.00 (457.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 11.7 (97.7) 60 CLE-PDM-C 9.7 (8.0) 6.00 (15.4).1 (56.1) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 9.75 (47.6) 60 CLE-PDM-D 8.4 (09.) 6.00 (15.4) 18.00 (457.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 11.7 (97.7) 60 5CLE-GDM-C 1.74 (.6) 6.00 (15.4) 5.50 (647.7) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 9.75 (47.6) 60 5CLE-PDM-C 1.74 (.6) 6.00 (15.4) 5.50 (647.7) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 9.75 (47.6) 60 5CLE-GDM-D 15.4 (87.1) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 11.7 (97.7) 60 5CLE-PDM-D 15.4 (87.1) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 11.7 (97.7) 60 5HLE-GDM-D 16.5 (41.8) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 11.7 (97.7) 60 5HLE-PDM-D 16.5 (41.8) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 11.7 (97.7) 60 8CLE-GDM-C 15.4 (87.1) 6.00 (15.4) 8.00 (711.) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.7 (14.) 75 8CLE-GDM-D 15.4 (87.1) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14. (61.) 75 8CLE-PDM-C 15.4 (87.1) 6.00 (15.4) 8.00 (711.) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.7 (14.) 75 8CLE-PDM-C 15.4 (87.1) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14. (61.) 75 8HLE-GDM-D 16.5 (41.8) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.7 (97.7) 75 8HLE-PDM-D 16.5 (41.8) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.7 (97.7) 75 15CLE-GDM-C 1.4 (59.5) 6.00 (15.4) 4.00 (86.6) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.7 (14.) 95 15CLE-GDM-D 1.15 (57.) 6.00 (15.4) 1.00 (787.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14. (61.) 95 15CLE-PDM-C 1.4 (59.5) 6.00 (15.4) 4.00 (86.6) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.7 (14.) 95 15CLE-PDM-D 1.15 (57.) 6.00 (15.4) 1.00 (787.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14. (61.) 95 15CLE-HPDM-C 1.4 (59.5) 6.00 (15.4) 4.00 (86.6) 0.75 (19.0) 1.75 (44.4) 8.50 (15.9) 1.87 (5.) 110 15CLE-HPDM-D 1.15 (57.) 6.00 (15.4) 1.00 (787.4) 0.6 (15.7) 1.75 (44.4) 8.50 (15.9) 1.87 (5.) 110 15HLE-GDM-D 16.5 (41.8) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14. (61.) 95 15HLE-PDM-D 16.5 (41.8) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14. (61.) 95 Catalog Number Hole Centers A Hole Centers B Overall Length C Hole Inset D Hole Centers E Contact Height F Overall Height G CLE-GDM-E 8.4 (09.) 6.00 (15.4) 18.00 (457.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 15.8 (88.1) 60 CLE-PDM-E 8.4 (09.) 6.00 (15.4) 18.00 (457.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 15.8 (88.1) 60 5CLE-GDM-E 15.4 (87.1) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 15.8 (88.1) 60 5CLS-PDM-E 15.4 (87.1) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 15.8 (88.1) 60 5HLE-GDM-E 16.5 (41.8) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 15.8 (88.1) 60 5HLE-PDM-E 16.5 (41.8) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 15.8 (88.1) 60 8CLE-GDM-E 15.4 (87.1) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 17.78 (451.6) 75 8CLE-PDM-E 15.4 (87.1) 6.00 (15.4) 5.00 (647.7) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 17.78 (451.6) 75 8HLE-GDM-E 16.5 (41.8) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 17.78 (451.6) 75 8HLE-PDM-E 16.5 (41.8) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 17.78 (451.6) 75 15CLE-PDM-E 1.15 (57.) 6.00 (15.4) 1.00 (787.4) 0.6 (15.7) 1.75 (44.4) 8.50 (15.9) 19.8 (489.7) 95 15HLE-GDM-E 16.5 (41.8) 6.00 (15.4) 6.00 (660.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 17.78 (451.6) 95 15HLE-PDM-E 16.5 (41.8) 6.00 (15.4) 6.00 (660.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 17.78 (451.6) 95 BIL BIL Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-9
V14-T-40 Volume 14 Fuses CA08100016E August 011 www.eaton.com.4 Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses Approximate Dimensions in Inches (mm) CLE and HLE Type Non-Disconnect Mountings D D E E A B C G F
Limiting Fuses CLE, HLE, LHLE, AHLE, BHLE, HCL and BHCL Type Fuses.4 Approximate Dimensions in Inches (mm) CLE and HLE Type Non-Disconnect Mounting Single Catalog Number Hole Centers A Hole Centers B Overall Length C CLE and HLE Type Non-Disconnect Mounting Double Hole Inset D Hole Centers E Contact Height F Overall Height G CLE-GNM-C 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 7.5 (184.1) 60 CLE-PNM-C 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 7.5 (184.1) 60 CLE-GNM-D 8.4 (09.) 6.00 (15.4) 18.00 (457.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 8.79 (.) 60 CLE-PNM-D 8.4 (09.) 6.00 (15.4) 18.00 (457.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 8.79 (.) 60 5CLE-GNM-C 1.75 (.8) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 7.5 (184.1) 60 5CLE-PNM-C 1.75 (.8) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 7.5 (184.1) 60 5CLE-GNM-D 15.4 (87.1) 6.00 (15.4) 5.00 (65.0) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 8.79 (.) 60 5CLE-PNM-D 15.4 (87.1) 6.00 (15.4) 5.00 (65.0) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 8.79 (.) 60 5HLE-GNM-D 16.5 (41.7) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 8.79 (.) 60 15HLE-PNM-D 16.5 (41.7) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 8.79 (.) 60 8CLE-GNM-C 15.5 (87.) 6.00 (15.4) 4.50 (6.) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.75 (47.6) 75 8CLE-PNM-C 15.5 (87.) 6.00 (15.4) 4.50 (6.) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.75 (47.6) 75 8CLE-PNM-D 15.5 (87.) 6.00 (15.4) 5.00 (65.0) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.9 (86.7) 75 8CLE-PNM-D 15.5 (87.) 6.00 (15.4) 5.00 (65.0) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.9 (86.7) 75 8HLE-GNM-D 16.5 (41.7) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.9 (86.7) 75 8HLE-PNM-D 16.5 (41.7) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.9 (86.7) 75 15CLE-GNM-C 1.5 (59.7) 6.00 (15.4) 0.50 (774.7) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.75 (47.6) 95 15CLE-PNM-C 1.5 (59.7) 6.00 (15.4) 0.50 (774.7) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.75 (47.6) 95 15CLE-HPMN-C 1.5 (59.7) 6.00 (15.4) 0.50 (774.7) 0.75 (19.0) 1.75 (44.4) 8.50 (15.9) 11.5 (85.7) 110 15CLE-GNM-D 1.15 (59.7) 6.00 (15.4) 1.00 (787.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.9 (86.7) 95 15CLE-PNM-D 1.15 (59.7) 6.00 (15.4) 1.00 (787.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.9 (86.7) 95 15CLE-HPNM-D 1.15 (59.7) 6.00 (15.4) 1.00 (787.4) 0.6 (15.7) 1.75 (44.4) 8.50 (15.9) 1.79 (86.7) 110 15HLE-GNM-D 16.5 (41.7) 6.00 (15.4) 6.00 (660.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.9 (86.7) 95 15HLE-PNM-D 16.5 (41.7) 6.00 (15.4) 6.00 (660.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 11.9 (86.7) 95 Catalog Number Hole Centers A Hole Centers B Overall Length C Hole Inset D Hole Centers E Contact Height F Overall Height G CLE-GNM-E 8.4 (09.) 6.00 (15.4) 18.00 (457.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 1.48 (17.0) 60 CLE-PNM-E 8.4 (09.) 6.00 (15.4) 18.00 (457.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 1.48 (17.0) 60 5CLE-GNM-E 15.4 (87.1) 6.00 (15.4) 5.00 (65.0) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 1.48 (17.0) 60 5HLE-PNM-E 15.4 (87.1) 6.00 (15.4) 5.00 (65.0) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 1.48 (17.0) 60 5HLE-GNM-E 16.5 (41.7) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 1.48 (17.0) 60 5HLE-PNM-E 16.5 (41.7) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 4.50 (114.) 1.48 (17.0) 60 8CLE-GNM-E 15.4 (87.1) 6.00 (15.4) 5.00 (65.0) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14.98 (80.5) 75 8CLE-PNM-E 15.4 (87.1) 6.00 (15.4) 5.00 (65.0) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14.98 (80.5) 75 8HLE-GNM-E 16.5 (41.7) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14.98 (80.5) 75 8HLE-PNM-E 16.5 (41.7) 6.00 (15.4).00 (584.) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14.98 (80.5) 75 15CLE-PNM-E 1.15 (59.7) 6.00 (15.4) 1.00 (787.4) 0.6 (15.7) 1.75 (44.4) 8.50 (15.9) 16.48 (418.5) 95 15HLE-GNM-E 16.5 (41.7) 6.00 (15.4) 6.00 (660.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14.98 (80.5) 95 15HLE-PNM-E 16.5 (41.7) 6.00 (15.4) 6.00 (660.4) 0.6 (15.7) 1.75 (44.4) 7.00 (177.8) 14.98 (80.5) 95 BIL BIL Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-41
.5 Limiting Fuses CLPT and NCLPT Type Fuses (N)CLPT Fuses Contents Description CLPT and NCLPT Type Fuses Selection................ Product Selection....................... Mounting Details........................ Page V14-T-4 V14-T-4 V14-T-48 CLPT and NCLPT Type Fuses Product Description Eaton CLPT (indicating) and NCLPT (non-indicating) fuses are applied wherever it is necessary to limit the shortcircuit currents on control transformer and potential transformer circuits in high capacity systems in industrial installations and commercial buildings. ratings from 1/E to 10E are available at.4 kv to 4.5 kv. Features CLPT and NCLPT type current limiting fuses offer a number of desirable advantages. Consider the following during the selection process: Quiet Safe Operation: These fuses are designed for silent operation and elimination of flame discharges when the fuse operates Identification of Blown Fuse: These fuses are available in indicating and non-indicating versions. Indicators protrude from indicating type fuses providing a visual indication of a blown fuse Space Economy: Because the fuse is designed to eliminate flame and gas discharges, no exhaust control devices, flame boxes, vents or reinforcing are required Complete Protection Provided: limiting fuses provide positive interruption even on low fault currents. The fuse limits the magnitude of electromechanical stresses in the apparatus to be protected Mountings: Disconnect and non-disconnect mountings are available for most types of fuses from 5 kv through 15 kv. Live parts are available for kv and 4.5 kv fuses Dimensions: Various fuse sizes are available for a wide range of applications Construction CLPT type current limiting fuses are basically constructed in a similar fashion to other Eaton current limiting fuses. s and Selection When a decision has been made to use current limiting fuses, the minimum amount of information required to make the proper selection is: Voltage rating rating Interrupting rating Mounting method Non-disconnect mounting Disconnect mounting Live parts only No required mounting Refer to tables on Pages V14-T-4 to V14-T-49 for assistance in selecting the correct fuse catalog number. These types of fuses are used in conjunction with potential and control power transformers. There are specific rules governing the selection of the required fuse continuous rating. The current limiting fuse application notes earlier in this publication offer additional information about this type of application. When selecting the appropriate fuse for a new installation, keep in mind that one fuse unit and one compatible mounting may be required for each phase. V14-T-4 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLPT and NCLPT Type Fuses.5 Selection CLPT Fuse Units CLPT Mounting Product Selection CLPT Type Indicating Maximum kv =.75 kv 5 = 5.5 kv 8 = 8. kv 15 = 15.5 kv 5 = 5.8 kv 8 = 8 kv Maximum kv =.75 kv 5 = 5.5 kv 8 = 8. kv 15 = 15.5 kv 5 = 5.8 kv 8 = 8 kv Type CLPT Type CLPT NCLPT 15 CLPT - 5E - A Insulator G = Glass polyester P = Porcelain Ampere 0.5E 1E 1.5E E E 4E 5E 8E 10E 15 CLPT - P NM - A Dimensions A = Shorter length B = Longer length Hardware DF = Disconnect end fittings DL = Disconnect live parts DM = Disconnect mounting NL = Non-disconnect live parts NM = Non-disconnect mounting CLPT Type Limiting Fuses.475 kv Maximum (.4 kv Nominal) Clip Performance Curves Interrupting Diameter Center Length Approximate (Amperes) rms (ka Sym.) Approximate Dimensions in Inches (mm) Shipping Weight Lbs (kg) Minimum Melting Time Total Clearing Time Dimensions A = Shorter length B = Longer length Peak Let- Through Catalog Number 0.5E 6 0.81 (0.6) 4.50 (114.) 0.5 (0.11) TC56570 TC598870 TC6970 NCLPT-.5E 0.5E 6 0.81 (0.6) 4.50 (114.) 0.5 (0.11) TC56570 TC598870 TC6970 NCLPT-.5E 1E 40 0.81 (0.6) 4.50 (114.) 0.5 (0.11) TC56570 TC598870 TC6970 NCLPT-1E E 40 0.81 (0.6) 4.50 (114.) 0.5 (0.11) TC56570 TC598870 TC6970 NCLPT-E 5E 5 0.81 (0.6) 4.50 (114.) 0.5 (0.11) TC56570 TC598870 TC6970 NCLPT-5E Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-4
.5 Limiting Fuses CLPT and NCLPT Type Fuses Non-Indicating Indicating CLPT Type Limiting Fuses 5.5 kv Maximum (4.8 kv Nominal) Clip Performance Curves Interrupting Diameter Center Length Approximate Shipping Minimum (Amperes) rms (ka Sym.) Approximate Dimensions in Inches (mm) Weight Lbs (kg) Melting Time CLPT Type Mountings and Hardware 5.5 kv Maximum (4.8 kv Nominal) Notes Refers only to 5CLPT and 5NCLPT-A fuses only. See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Total Clearing Time Peak Let- Through Catalog Number Non-Indicating 0.5E 6 0.81 (0.6) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 5NCLPT-.5E 1E 6 0.81 (0.6) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 5NCLPT-1E E 6 0.81 (0.6) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 5NCLPT-E E 6 0.81 (0.6) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 5NCLPT-E 4E 6 0.81 (0.6) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 5NCLPT-4E 5E 6 0.81 (0.6) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 5NCLPT-5E 0.5E 50 1.00 (5.4) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 17B487H0 1E 50 1.00 (5.4) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 17B487H06 E 50 1.00 (5.4) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 17B487H0 E 50 1.00 (5.4) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 17B487H04 5E 50 1.00 (5.4) 5.6 (14.0) 0.5 (0.11) TC667040 TC667050 TC66704101 17B487H05 0.5E 6 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC705480 TC7054840 TC69400 5NCLPT-.5E-A 1E 6 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC705480 TC7054840 TC69400 5NCLPT-1E-A E 6 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC705480 TC7054840 TC69400 5NCLPT-E-A E 6 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC705480 TC7054840 TC69400 5NCLPT-E-A 5E 6 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC705480 TC7054840 TC69400 5NCLPT-5E-A 10E 6 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC705480 TC7054840 TC69400 5NCLPT-10E-A Indicating 0.5E 80 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC56506 TC56506 TC694001 5CLPT-.5E 1E 80 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC56506 TC56506 TC694001 5CLPT-1E 1.5E 80 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC56506 TC56506 TC694001 5CLPT-1.5E E 80 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC56506 TC56506 TC694001 5CLPT-E 5E 80 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC56506 TC56506 TC694001 5CLPT-5E 10E 80 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1. (0.54) TC56506 TC56506 TC694001 5CLPT-10E Ampere Fuse Mounting Type Voltage BIL (kv) Mounting (Including Live Parts, End Fittings) Porcelain Insulator Glass-Polyester Insulator Live Parts (Including End Fittings) End Fittings (Disconnect Only) 0.5 Non-disconnect 60 5CLPT-PNM-A 5CLPT-GNM-A CLPT-NL Disconnect 60 5CLPT-PDM-A 5CLPT-GDM-A CLPT-DL CLPT-DF 10 Non-disconnect 60 5CLPT-PNM-B 5CLPT-GNM-B CLPT-NL Disconnect 60 5CLPT-PDM-B 5CLPT-GDM-B CLPT-DL CLPT-DF V14-T-44 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLPT and NCLPT Type Fuses.5 Non-Indicating Indicating CLPT Type Limiting Fuses 8. kv Maximum (7. kv Nominal) Clip Performance Curves Interrupting Diameter Center Length Approximate Shipping Minimum (Amperes) rms (ka Sym.) Approximate Dimensions in Inches (mm) Weight Lbs (kg) Melting Time CLPT Type Mountings and Hardware 8. kv Maximum (7. kv Nominal) Notes Refers only to 8CLPT and 8NCLPT-A or -B fuses only. See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Total Clearing Time Peak Let- Through Catalog Number Non-Indicating E 5 0.81 (0.6) 8.00 (0.) 0.5 (0.11) TC565706 TC5988706 TC69704 8NCLPT-E 4E 5 0.81 (0.6) 8.00 (0.) 0.5 (0.11) TC565706 TC5988706 TC69704 8NCLPT-4E 10E 50 1.10 (7.9) 5.00 (17.0) 0.5 (0.) TC565706 TC5988706 TC69704 8NCLPT-0E 1E 50 1.10 (7.9) 5.00 (17.0) 0.5 (0.) TC565706 TC5988706 TC69704 8NCLPT-1E 5E 50 1.10 (7.9) 5.00 (17.0) 0.5 (0.) TC565706 TC5988706 TC69704 8NCLPT-5E 0.5E 50 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1.5 (0.70) TC705480 TC7054840 TC69400 8NCLPT-.5E-A 1E 50 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1.5 (0.70) TC705480 TC7054840 TC69400 8NCLPT-1E-A E 50 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1.5 (0.70) TC705480 TC7054840 TC69400 8NCLPT-E-A E 50 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1.5 (0.70) TC705480 TC7054840 TC69400 8NCLPT-E-B 5E 50 1.60 (40.6) 11.50 (9.1) 1.90 (7.7) 1.6 (0.7) TC705480 TC7054840 TC69400 8NCLPT-5E-B 10E 50 1.60 (40.6) 11.50 (9.1) 1.90 (7.7) 1.6 (0.7) TC705480 TC7054840 TC69400 8NCLPT-10E-B Indicating.5E 80 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1.5 (0.70) TC56506 TC56506 TC694001 8CLPT-.5E E 80 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1.6 (0.7) TC56506 TC56506 TC694001 8CLPT-E 5E 50 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1.6 (0.7) TC56506 TC56506 TC694001 8CLPT-5E 10E 50 1.60 (40.6) 8.10 (05.7) 9.50 (41.) 1.6 (0.7) TC56506 TC56506 TC694001 8CLPT-10E Ampere Fuse Mounting Type Voltage BIL (kv) Mounting (Including Live Parts, End Fittings) Porcelain Insulator Glass-Polyester Insulator Live Parts (Including End Fittings) End Fittings (Disconnect Only) 0.5 Non-disconnect 75 8CLPT-PNM-A 8CLPT-GNM-A CLPT-NL Disconnect 75 8CLPT-PDM-A 8CLPT-GDM-A CLPT-DL CLPT-DF 10 Non-disconnect 75 8CLPT-PNM-B 8CLPT-GNM-B CLPT-NL Disconnect 75 8CLPT-PDM-B 8CLPT-GDM-B CLPT-DL CLPT-DF Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-45
.5 Limiting Fuses CLPT and NCLPT Type Fuses Non-Indicating Indicating CLPT Type Limiting Fuses 15.5 kv Maximum (7. kv Nominal) Clip Performance Curves Interrupting Diameter Center Length Approximate Shipping Minimum (Amperes) rms (ka Sym.) Approximate Dimensions in Inches (mm) Weight Lbs (kg) Melting Time CLPT Type Mountings and Hardware 15.5 kv Maximum (14.4 kv Nominal) Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Total Clearing Time Peak Let- Through Catalog Number Non-Indicating 0.5E 6 1.60 (40.6) 11.50 (9.1) 1.90 (7.7) 1.6 (0.7) TC705480 TC7054840 TC69400 15NCLPT-.5E 1E 6 1.60 (40.6) 11.50 (9.1) 1.90 (7.7) 1.6 (0.7) TC705480 TC7054840 TC69400 15NCLPT-1E E 6 1.60 (40.6) 11.50 (9.1) 1.90 (7.7) 1.6 (0.7) TC705480 TC7054840 TC69400 15NCLPT-1.5E E 6 1.60 (40.6) 16.10 (408.9) 17.60 (447.0) (0.91) TC705480 TC7054840 TC69400 15NCLPT-E 5E 6 1.60 (40.6) 16.10 (408.9) 17.60 (447.0) (0.91) TC705480 TC7054840 TC69400 15NCLPT-5E 10E 6 1.60 (40.6) 16.10 (408.9) 17.60 (447.0) (0.91) TC705480 TC7054840 TC69400 15NCLPT-10E Indicating 0.5E 80 1.60 (40.6) 11.50 (9.1) 1.90 (7.7) 1.6 (0.7) TC56506 TC56506 TC694001 15CLPT-.5E 1E 80 1.60 (40.6) 11.50 (9.1) 1.90 (7.7) 1.6 (0.7) TC56506 TC56506 TC694001 15CLPT-1E E 80 1.60 (40.6) 11.50 (9.1) 1.90 (7.7) 1.6 (0.7) TC56506 TC56506 TC694001 15CLPT-1.5E E 80 1.60 (40.6) 16.10 (408.9) 17.60 (447.0) (0.91) TC56506 TC56506 TC694001 15CLPT-E 5E 80 1.60 (40.6) 16.10 (408.9) 17.60 (447.0) (0.91) TC56506 TC56506 TC694001 15CLPT-5E 10E 50 1.60 (40.6) 16.10 (408.9) 17.60 (447.0) (0.91) TC56506 TC56506 TC694001 15CLPT-10E Ampere Fuse Mounting Type Voltage BIL (kv) Mounting (Including Live Parts, End Fittings) Porcelain Insulator Glass-Polyester Insulator Live Parts (Including End Fittings) End Fittings (Disconnect Only) 0.5 Non-disconnect 95 15CLPT-PNM-A 15CLPT-GNM-A CLPT-NL Disconnect 95 15CLPT-PDM-A 15CLPT-GDM-A CLPT-DL CLPT-DF 10 Non-disconnect 95 15CLPT-PNM-B 15CLPT-GNM-B CLPT-NL CLPT-DF Disconnect 95 15CLPT-PDM-B 15CLPT-GDM-B CLPT-DL V14-T-46 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLPT and NCLPT Type Fuses.5 CLPT Type Limiting Fuses 5.5 kv Maximum (.0 kv Nominal) Interrupting Clip Approximate Performance Curves Diameter Center Length Shipping Minimum Total (Amperes) rms (ka Sym.) Approximate Dimensions in Inches (mm) Weight Lbs (kg) Melting Time Clearing Time CLPT Type Mountings and Hardware 5.5 kv Maximum (.0 kv Nominal) Mounting Live Parts End Fittings (Including Live Parts, End Fittings) (Including End Fittings) (Disconnect Only) Ampere Fuse Mounting Voltage Porcelain Insulator Glass-Polyester Insulator Type BIL (kv) CLPT Type Mountings and Hardware 8.0 kv Maximum (4.5 kv Nominal) Mounting Live Parts End Fittings (Including Live Parts, End Fittings) (Including End Fittings) (Disconnect Only) Ampere Fuse Mounting Voltage Porcelain Insulator Glass-Polyester Insulator Type BIL (kv) Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through Catalog Number 0.5E 44 1.60 (40.6) 16.10 (408.9) 17.60 (447.0) (0.91) TC56508 TC56508 TC69901 5CLPT-.5E 1E 44 1.60 (40.6) 16.10 (408.9) 17.60 (447.0) (0.91) TC56508 TC56508 TC69901 5CLPT-1E 0.5E 1E Non-disconnect 150 5CLPT-PNM-A 5CLPT-NL Disconnect 150 5CLPT-PDM-A 5CLPT-DL CLPT-DF CLPT Type Limiting Fuses 8.0 kv Maximum (4.5 kv Nominal) Interrupting Clip Approximate Performance Curves Diameter Center Length Shipping Minimum Total (Amperes) rms (ka Sym.) Approximate Dimensions in Inches (mm) Weight Lbs (kg) Melting Time Clearing Time Peak Let-Through Catalog Number 0.5E 44 1.60 (40.6) 17.10 (44.) 18.60 (47.4) (0.91) TC56508 TC56508 TC69901 8CLPT-.5E 0.5E Disconnect Not applicable Not applicable 5CLPT-NL CLPT-DF Non-disconnect Not applicable Not applicable 5CLPT-DL Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-47
.5 Limiting Fuses CLPT and NCLPT Type Fuses Mounting Details Approximate Dimensions in Inches (mm) CLPT and NCLPT Type Disconnect Mountings E A E D D Catalog Number B Hole Centers A C Hole Centers B Overall Length C Hole Inset D Hole Centers E Contact Height F Overall Height G 5CLPT-GDM-A 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 9.56 (4.8) 60 5CLPT-PDM-A 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 9.56 (4.8) 60 8CLPT-GDM-A 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.06 (06.) 75 8CLPT-GDM-B 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.06 (06.) 75 8CLPT-PDM-A 1.74 (.6) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.06 (06.) 75 8CLPT-PDM-B 1.74 (.6) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.06 (06.) 75 15CLPT-GDM-A 1.74 (.6) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.06 (06.) 95 15CLPT-PDM-A 1.74 (.6) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.06 (06.) 95 15CLPT-GDM-B 17.46 (44.5) 6.00 (15.4) 6.6 (676.4) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.06 (06.) 95 15CLPT-PDM-B 17.46 (44.5) 6.00 (15.4) 6.6 (676.4) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 1.06 (06.) 95 15CLPY-HPDM-A 1.74 (.6) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 8.50 (15.9) 1.56 (44.4) 110 15CLPT-HPDM-B 17.46 (44.5) 6.00 (15.4) 6.6 (676.4) 0.75 (19.0) 1.75 (44.4) 8.50 (15.9) 1.56 (44.4) 110 5CLPT-PNM-A 19.1 (485.6) 7.00 (177.8) 6.6 (676.4) 0.75 (19.0) 1.75 (44.4) 1.00 (04.8) 17.06 (4.) 150 G F BIL V14-T-48 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLPT and NCLPT Type Fuses.5 Approximate Dimensions in Inches (mm) CLPT and NCLPT Type Non-Disconnect Mountings E A E D D Catalog Number B Hole Centers A C Hole Centers B Overall Length C Hole Inset D Hole Centers E Contact Height F Overall Height G 5CLPT-GNM-A 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 6.94 (176.) 60 5CLPT-PNM-A 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 4.50 (114.) 6.94 (176.) 60 8CLPT-GNM-A 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.44 (9.8) 75 8CLPT-PNM-A 9.7 (8.0) 6.00 (15.4) 18.6 (47.) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.44 (9.8) 75 8CLPT-GNM-B 1.75 (.8) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.44 (9.8) 75 8CLPT-PNM-B 1.75 (.8) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.44 (9.8) 75 15CLPT-GNM-A 1.74 (.6) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.44 (9.8) 95 15CLPT-PNM-A 1.74 (.6) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.44 (9.8) 95 15CLPT-HPNM-A 1.74 (.6) 6.00 (15.4).00 (558.8) 0.75 (19.0) 1.75 (44.4) 8.50 (15.9) 10.94 (77.9) 110 15CLPT-GNM-B 17.46 (44.5) 6.00 (15.4) 6.6 (676.4) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.44 (9.8) 95 15CLPT-PNM-B 17.46 (44.5) 6.00 (15.4) 6.6 (676.4) 0.75 (19.0) 1.75 (44.4) 7.00 (177.8) 9.44 (9.8) 95 15CLPT-HPNM-B 17.46 (44.5) 6.00 (15.4) 6.6 (676.4) 0.75 (19.0) 1.75 (44.4) 8.50 (15.9) 10.94 (77.9) 110 5CLPT-PNM-A 19.1 (485.6) 7.00 (177.8) 6.6 (676.4) 0.75 (19.0) 1.75 (44.4) 1.00 (04.8) 14.4 (67.0) 150 8CLPT-PNM-A 19.1 (485.6) 7.00 (177.8) 6.6 (676.4) 0.75 (19.0) 1.75 (44.4) 1.00 (04.8) 14.4 (67.0) 150 G F BIL Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-49
.6 Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses Motor Start Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses Product Description Eaton s CLS current limiting fuses are used in conjunction with medium voltage motor starters to provide shortcircuit protection for individual motor circuits. Contactors in motor starting equipment protect the equipment from overcurrents due to starting, stalling and plugging while current limiting fuses provide short-circuit protection only. Duty cycles of fuses used in medium voltage motor starters are characterized by the frequent application of high overloads such as motor starting currents. Motor starter fuses, therefore, must be designed to withstand the consequent frequent severe heating and cooling cycles without fatigue failures. CLS type fuses have such a construction. The element designs used are not sensitive to low currents, and have fatigue proof features to provide highly uniform flexing of elements during heating cycles. The mounting possibilities for CLS type current limiting fuses are shown on Page V14-T-64, with disconnect type being the predominant approach. CLS Features CLS type current limiting fuses offer a number of advantages over a number of other designs. During the selection process, consider the following: Quiet Safe Operation: CLS type current limiting fuses are designed for silent operation and elimination of flame discharges when the fuse operates Easy to Identify Operated Fuse: CLS type current limiting fuses are equipped with an indicator that will protrude indicating when a fuse has operated Space Economy: Because the design of these fuses has eliminated flame or gas discharge, the need for exhaust control devices, vents and reinforcing is eliminated Contents Description ACLS, BCLS, CLS, HCLS and NCLS Type Fuses UL Component Recognition............... s and Selection.................... Selection................ Product Selection....................... Dimensions............................ Complete Protection Provided: CLS type current limiting fuses ensure positive interruption of high fault currents. The fuse limits the magnitude of the electromechanical stresses in the protected apparatus. They also limit the arc voltage to considerably less than three times the nominal circuit voltage Fatigue Proof: Controlled crimping of the silver elements during fuse manufacture permits CLS type current limiting fuses to withstand severe duty cycling without failure Page V14-T-51 V14-T-51 V14-T-51 V14-T-59 V14-T-6 Construction CLS type current limiting fuses are of basically inorganic construction. The only organic material used is a high temperature glassresin outer casing and the plastic indicator. The fuse elements are pure silver and are crimped at controlled locations along the active length to increase the strength of the element, and to uniformly distribute mechanical expansion and prevent fatigue failure due to severe cycling duties. Element design combines maximum load carrying ability with the most favorable short circuit interruption characteristics. These fuses are filled with a high purity silica sand with controlled grain size. V14-T-50 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses.6 UL Component Recognition Underwriters Laboratories has witnessed testing on and recognizes certain styles of 5CLS and 5ACLS fuses. These fuses carry the reversed UR designation. CLS type current limiting motor start fuses manufactured prior to 1975 were not identified by an R designation. However, these fuses can be used with or replaced by newer fuses with R designations as indicated below. s and Selection When a decision has been made to use current limiting fuses, the minimum amount of information required to make the proper selection is: Voltage rating rating Interrupting rating Mounting method Non-disconnect mounting Disconnect mounting Clip-lock mounting Direct bolt-in mounting Live parts only No required mounting Refer to Pages V14-T-5 to V14-T-6 for assistance in selecting the correct fuse catalog number. These types of fuses are used in conjunction with high voltage motor starters to provide short-circuit protection for individual motors. There are specific rules governing the selection of the required fuse continuous rating. The current limiting fuse application notes earlier in this publication offer additional information about this type of application. When selecting the appropriate fuse for a new installation, keep in mind that one fuse unit and one compatible mounting is required for each phase. Selection CLS Fuse Units Maximum kv =.75 kv 4 = 4. kv 5 = 5.5 kv 8 = 8. kv 15 = 15.5 kv 15 CLS 00E Type ACLS BCLS CLS HCLS Continuos Amperes 5A, R 44R Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-51
.6 Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses CLS Type Limiting Fuses Max. Design Voltage (kv) (A) Notes Includes end fittings. Disconnect only. R Designation Catalog Number Barrel Number Interrupting rms (ka Sym.) Diameter (Inches) Clip Center (Inches) Length (Inches) Approx. Shipping Weight (Lbs) Live Parts End Fittings Performance Curves Minimum Melting Time Total Clearing Time Peak Let- Through.54 5 CLS-5 1 50 7 10.8 7 CLE-NL-D TC6666470 TC66664704 TC667000 70 R CLS-R 1 50 7 10.8 7 CLE-DL-D CLE-DF-D 100 R CLS-R 1 50 7 10.8 7 10 4R CLS-4R 1 50 7 10.8 7 150 5R CLS-5R 1 50 7 10.8 7 170 6R CLS-6R 1 50 7 10.8 7 00 9R CLS-9R 1 50 7 10.8 7 0 1R CLS-1R 1 50 7 10.8 7 90 18R CLS-18R 50 7 10.8 16 CLE-NL-E TC6666470 TC66664704 TC667000 450 4R CLS-4R 50 7 10.8 16 CLE-DL-E CLE-DF-E 5 ACLS-5 1 50 10.8 7 TC6666470 TC66664704 TC667000 70 R ACLS-R 1 50 10.8 7 100 R ACLS-R 1 50 10.8 7 10 4R ACLS-4R 1 50 10.8 7 150 5R ACLS-5R 1 50 10.8 7 170 6R ACLS-6R 1 50 10.8 7 00 9R ACLS-9R 1 50 10.8 7 0 1R ACLS-1R 1 50 10.8 7 90 18R ACLS-18R 50 10.8 16 450 4R ACLS-4R 50 10.8 16 5 BCLS-5 1 50 8 TC6666470 TC66664704 TC667000 70 R BCLS-R 1 50 8 100 R BCLS-R 1 50 8 10 4R BCLS-4R 1 50 8 150 5R BCLS-5R 1 50 8 170 6R BCLS-6R 1 50 8 00 9R BCLS-9R 1 50 8 0 1R BCLS-1R 1 50 8 90 18R BCLS-18R 50 17 450 4R BCLS-4R 50 17 5 HCLS-5 1 50 10.8 7 TC6666470 TC66664704 TC667000 70 R HCLS-R 1 50 10.8 7 100 R HCLS-R 1 50 10.8 7 10 4R HCLS-4R 1 50 10.8 7 150 5R HCLS-5R 1 50 10.8 7 170 6R HCLS-6R 1 50 10.8 7 00 9R HCLS-9R 1 50 10.8 7 0 1R HCLS-1R 1 50 10.8 7 90 18R HCLS-18R 50 10.8 16 450 4R HCLS-4R 50 10.8 16 V14-T-5 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses.6 CLS Type Limiting Fuses, continued Max. Design Voltage (kv) (A) Notes Includes end fittings. Disconnect only. R Designation Catalog Number Barrel Number Interrupting rms (ka Sym.) Diameter (Inches) Clip Center (Inches) Length (Inches) Approx. Shipping Weight (Lbs) Live Parts End Fittings Performance Curves Minimum Melting Time Total Clearing Time Peak Let- Through 5.5 0 5CLS-0 1 50 1 15.9 8 CLE-NL-D TC6669060 TC6669070 TC667000 70 R 5CLS-R 1 50 1 15.9 8 CLE-DL-D CLE-DF-D 100 R 5CLS-R 1 50 1 15.9 8 10 4R 5CLS-4R 1 50 1 15.9 8 150 5R 5CLS-5R 1 50 1 15.9 8 170 6R 5CLS-6R 1 50 1 15.9 8 00 9R 5CLS-9R 1 50 1 15.9 8 0 1R 5CLS-1R 1 50 1 15.9 8 90 18R 5CLS-18R 50 1 15.9 17 CLE-NL-E TC6669060 TC6669070 TC667000 450 4R 5CLS-4R 50 1 15.9 17 CLE-DL-E CLE-DF-E 5.08 0 5ACLS-0 1 50 15.9 8 TC6669060 TC6669070 TC667000 70 R 5ACLS-R 1 50 15.9 8 100 R 5ACLS-R 1 50 15.9 8 10 4R 5ACLS-4R 1 50 15.9 8 150 5R 5ACLS-5R 1 50 15.9 8 170 6R 5ACLS-6R 1 50 15.9 8 00 9R 5ACLS-9R 1 50 15.9 8 0 1R 5ACLS-1R 1 50 15.9 8 90 18R 5ACLS-18R 50 15.9 17 450 4R 5ACLS-4R 50 15.9 17 4. 480 6R 4ACLS-6R 50 15.9 17 5.08 0 5BCLS-0 1 50 8 TC6669060 TC6669070 TC667000 70 R 5BCLS-R 1 50 8 100 R 5BCLS-R 1 50 8 10 4R 5BCLS-4R 1 50 8 150 5R 5BCLS-5R 1 50 8 170 6R 5BCLS-6R 1 50 8 00 9R 5BCLS-9R 1 50 8 0 1R 5BCLS-1R 1 50 8 90 18R 5BCLS-18R 50 17 450 4R 5BCLS-4R 50 17 4. 480 6R 4BCLS-6R 50 17 5.08 0 5HCLS-0 1 50 15.9 8 TC6669060 TC6669070 TC667000 70 R 5HCLS-R 1 50 15.9 8 100 R 5HCLS-R 1 50 15.9 8 10 4R 5HCLS-4R 1 50 15.9 8 150 5R 5HCLS-5R 1 50 15.9 8 170 6R 5HCLS-6R 1 50 15.9 8 00 9R 5HCLS-9R 1 50 15.9 8 0 1R 5HCLS-1R 1 50 15.9 8 90 18R 5HCLS-18R 50 15.9 17 450 4R 5HCLS-4R 50 15.9 17 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-5
.6 Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses CLS Type Limiting Fuses, continued Max. Design Voltage (kv) (A) Notes Includes end fittings. Disconnect only. R Designation Catalog Number Barrel Number Interrupting rms (ka Sym.) Diameter (Inches) Clip Center (Inches) Length (Inches) Approx. Shipping Weight (Lbs) Live Parts End Fittings Performance Curves Minimum Melting Time Total Clearing Time Peak Let- Through 5.08 70 R 5CLS70-R 50 0 TC6669060 TC6669070 TC667000 100 R 5CLS70-R 50 0 10 4R 5CLS70-4R 50 0 150 5R 5CLS70-5R 50 0 170 6R 5CLS70-6R 50 0 00 9R 5CLS70-9R 50 0 0 1R 5CLS70-1R 50 4 40 90 18R 5CLS70-18R 50 4 40 450 4R 5CLS70-4R 50 4 40 600 R 5CLS70-R 50 4 40 650 6R 5CLS70-6R 50 4 40 700 44R 5CLS70-44R 50 4 40 5.5 70 R 5LCLS-R 1 50 14 17.9 11 CLE-NL-D TC51850 TC518540 TC6670004 100 R 5LCLS-R 1 50 14 17.9 11 CLE-DL-D CLE-DF-D CLE-DF-D CLE-DF-D 10 4R 5LCLS-4R 1 50 14 17.9 11 150 5R 5LCLS-5R 1 50 14 17.9 11 170 6R 5LCLS-6R 1 50 14 17.9 11 00 9R 5LCLS-9R 1 50 14 17.9 11 0 1R 5LCLS-1R 1 50 14 17.9 11 90 18R 5LCLS-18R 50 14 17.9 450 4R 5LCLS-4R 50 14 17.9 8. 70 R 8CLS-R 1 50 1 15.9 7 CLE-NL-D TC6670060 TC6670070 TC6670005 100 R 8CLS-R 1 50 1 15.9 7 CLE-DL-D CLE-DF-D 10 4R 8CLS-4R 1 50 1 15.9 7 150 5R 8CLS-5R 1 50 1 15.9 7 170 6R 8CLS-6R 1 50 1 15.9 7 00 9R 7CLS-9R 1 50 1 15.9 7 0 1R 7CLS-1R 1 50 1 15.9 7 7. 90 18R 7CLS-18R 50 1 15.9 16 CLE-NL-E TC6670060 TC6670070 TC6670005 450 4R 7CLS-4R 50 1 15.9 16 CLE-DL-E CLE-DF-E 8. 70 R 7BCLS-R 1 50 TC6670060 TC6670070 TC6674005 100 R 7BCLS-R 1 50 10 4R 7BCLS-4R 1 50 150 5R 7BCLS-5R 1 50 170 6R 7BCLS-6R 1 50 00 9R 7BCLS-9R 1 50 0 1R 7BCLS-1R 1 50 7. 90 18R 7BCLS-18R 50 450 4R 7BCLS-4R 50 V14-T-54 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses.6 CLS Type Limiting Fuses, continued Max. Design Voltage (kv) (A) Notes Includes end fittings. Disconnect only. R Designation Catalog Number Barrel Number Interrupting rms (ka Sym.) Diameter (Inches) Clip Center (Inches) Length (Inches) Approx. Shipping Weight (Lbs) Live Parts End Fittings Performance Curves Minimum Melting Time Total Clearing Time Peak Let- Through 8. 70 R 8ACLS-R 1 50 15.9 8 TC6670060 TC6670070 TC6674005 100 R 8ACLS-R 1 50 15.9 8 10 4R 8ACLS-4R 1 50 15.9 8 150 5R 8ACLS-5R 1 50 15.9 8 170 6R 8ACLS-6R 1 50 15.9 8 7. 00 9R 7ACLS-9R 1 50 15.9 8 0 1R 7ACLS-1R 1 50 15.9 8 90 18R 7ACLS-18R 50 15.9 17 450 4R 7ACLS-4R 50 15.9 17 450 4R 7CLS70-4R 50 0 650 6R 7CLS70-6R 50 0 700 44R 7CLS70-44R 50 4 40 8. 15 8CLS-15 1 50 14 17.9 11 CLE-NL-D TC666640 TC666640 TC6667980 0 8CLS-0 1 50 14 17.9 11 CLE-DL-D CLS-DF-D 60 8CLS-60 1 50 14 17.9 11 70 8CLS-70 1 50 14 17.9 11 90 8CLS-90 1 50 14 17.9 11 110 8CLS-110 1 50 14 17.9 11 15 8CLS-15 1 50 14 17.9 11 150 8CLS-150 50 14 17.9 CLE-NL-E TC666640 TC666640 TC6667980 00 8CLS-00 50 14 17.9 CLE-DL-E CLE-DF-E 5 8CLS-5 50 14 17.9 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-55
.6 Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses CLS Type Limiting Fuses Mounting Mounting (Includes Live Parts, End Fittings) Maximum Design R Catalog Voltage Voltage (kv) (Amperes) Designation Number Type (BIL) kv Porcelain Glass-Polyester.54 5 70 R CLS-5 CLS-R Non-disconnect Disconnect 60 60 CLE-PNM-D CLE-PDM-D 100 R CLS-R 10 4R CLS-4R 150 5R CLS-5R 170 6R CLS-6R 00 9R CLS-9R 0 1R CLS-1R 90 18R CLS-18R Non-disconnect 60 CLE-PNM-E 450 4R CLS-4R Disconnect 60 CLE-PDME 5 ACLS-5 For use with Ampgard 400A motor starters 70 R ACLS-R 100 R ACLS-R 10 4R ACLS-4R 150 5R ACLS-5R 170 6R ACLS-6R 00 9R ACLS-9R 0 1R ACLS-1R 90 18R ACLS-18R 450 4R ACLS-4R 5 BCLS-5 Bolt-in 70 R BCLS-R 100 R BCLS-R 10 4R BCLS-4R 150 5R BCLS-5R 170 6R BCLS-6R 00 9R BCLS-9R 0 1R BCLS-1R 90 18R BCLS-18R 450 4R BCLS-4R 5 HCLS-5 Hermetically sealed fuses for use with Ampgard 400A motor starters 70 R HCLS-R 100 R HCLS-R 10 4R HCLS-4R 150 5R HCLS-5R 170 6R HCLS-6R 00 9R HCLS-9R 0 1R HCLS-1R 90 18R HCLS-18R 450 4R HCLS-4R 5.5 0 5CLS-0 Non-disconnect 60 5HLE-PNM-D 70 R 5CLS-R Disconnect 60 5HLE-PDM-D 100 R 5CLS-R 10 4R 5CLS-4R 150 5R 5CLS-5R 170 6R 5CLS-6R 00 9R 5CLS-9R 0 1R 5CLS-1R CLE-GNM-D CLE-GDM-E CLE-GNM-E CLE-GDM-E 5HLE-GNM-D 5HLE-GDM-E V14-T-56 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses.6 CLS Type Limiting Fuses Mounting, continued Mounting (Includes Live Parts, End Fittings) Maximum Design R Catalog Voltage Voltage (kv) (Amperes) Designation Number Type (BIL) kv Porcelain Glass-Polyester 5.5 90 18R 5CLS-18R Non-disconnect 60 5HLE-PNM-E 5HLE-GNM-E 450 4R 5CLS-4R Disconnect 60 5HLE-PDME 5HLE-GDM-E 5.08 0 5ACLS-0 For use with Ampgard 400A motor starters 70 R 5ACLS-R 100 R 5ACLS-R 10 4R 5ACLS-4R 150 5R 5ACLS-5R 170 6R 5ACLS-6R 00 9R 5ACLS-9R 0 1R 5ACLS-1R 90 18R 5ACLS-18R 450 4R 5ACLS-4R 4. 480 6R 4ACLS-6R 5.08 0 5BCLS-0 Bolt-in 70 R 5BCLS-R 100 R 5BCLS-R 10 4R 5BCLS-4R 150 5R 5BCLS-5R 170 6R 5BCLS-6R 00 9R 5BCLS-9R 0 1R 5BCLS-1R 90 18R 5BCLS-18R 450 4R 5BCLS-4R 4. 480 6R 4BCLS-6R 5.08 0 5HCLS-0 Hermetically sealed for use with Ampgard 400A motor starters 70 R 5HCLS-R 100 R 5HCLS-R 10 4R 5HCLS-4R 150 5R 5HCLS-5R 170 6R 5HCLS-6R 00 9R 5HCLS-9R 0 1R 5HCLS-1R 90 18R 5HCLS-18R 450 4R 5HCLS-4R 70 R 5CLS70-R For use with Ampgard 800A motor starters 100 R 5CLS70-R 10 4R 5CLS70-4R 150 5R 5CLS70-5R 170 6R 5CLS70-6R 00 9R 5CLS70-9R 0 1R 5CLS70-1R 90 18R 5CLS70-18R 450 4R 5CLS70-4R 600 R 5CLS70-R 650 6R 5CLS70-6R 700 44R 5CLS70-44R Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-57
.6 Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses CLS Type Limiting Fuses Mounting, continued Mounting (Includes Live Parts, End Fittings) Maximum Design R Catalog Voltage Voltage (kv) (Amperes) Designation Number Type (BIL) kv Porcelain Glass-Polyester 5.5 70 R 5LCLS-R Non-disconnect 60 100 R 5LCLS-R Disconnect 60 Disconnect 75 10 4R 5LCLS-4R 150 5R 5LCLS-5R 170 6R 5LCLS-6R 00 9R 5LCLS-9R 0 1R 5LCLS-1R 90 18R 5LCLS-18R 450 4R 5LCLS-4R 8. 70 R 8CLS-R Non-disconnect 75 100 R 8CLS-R Disconnect 75 10 4R 8CLS-4R 150 5R 8CLS-5R 170 6R 8CLS-6R 00 9R 7CLS-9R 0 1R 7CLS-1R 7. 90 18R 7CLS-18R Non-disconnect 75 450 4R 7CLS-4R Disconnect 75 8. 70 R 7BCLS-R Bolt-in 100 R 7BCLS-R 10 4R 7BCLS-4R 150 5R 7BCLS-5R 170 6R 7BCLS-6R 00 9R 7BCLS-9R 0 1R 7BCLS-1R 7. 90 18R 7BCLS-18R 450 4R 7BCLS-4R 8. 70 R 8ACLS-R For use with Ampgard 400A motor starters 100 R 8ACLS-R 10 4R 8ACLS-4R 150 5R 8ACLS-5R 170 6R 8ACLS-6R 7. 00 9R 7ACLS-9R 0 1R 7ACLS-1R 90 18R 7ACLS-18R 450 4R 7ACLS-4R 450 4R 7CLS70-4R For use with Ampgard 800A motor starters 650 6R 7CLS70-6R 700 44R 7CLS70-44R 8. 15 8CLS-15 Non-disconnect 75 0 8CLS-0 Disconnect 75 60 8CLS-60 70 8CLS-70 90 8CLS-90 110 8CLS-110 15 8CLS-15 150 8CLS-150 Non-disconnect 75 00 8CLS-00 Disconnect 75 5 8CLS-5 5CLE-PNM-D 5CLE-PDM-D 8CLE-PDM-D 8HLE-PNM-D 8HLE-PDM-D 8HLE-PDM-E 8HLE-PDM-E 8CLE-PNM-D 8CLE-PDM-D 8CLE-PNM-E 8CLE-PDM-E 5CLE-GNM-D 5CLE-GDM-D 8CLE-GDM-D 8HLE-GNM-D 8HLE-GDM-D 8HLE-GNM-E 8HLE-GDM-E 8CLE-GNM-D 8CLE-GDM-D 8CLE-GNM-E 8CLE-GDM-E V14-T-58 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses.6 Product Selection CLS Type CLS Type Limiting Fuses Maximum Design Voltage (kv) (Amperes) R Designation Barrel Number Interrupting rms (ka Sym.) Diameter Clip Center Length Approximate Approximate Dimensions in Inches (mm) Shipping Weight Lbs (kg) Performance Curves Minimum Melting Time Total Clearing Time Peak Let-Through Catalog Number.54 5 1 50.00 (76.) 7.00 (177.8) 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 CLS-5 70 R 1 50.00 (76.) 7.00 (177.8) 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 CLS-R 100 R 1 50.00 (76.) 7.00 (177.8) 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 CLS-R 10 4R 1 50.00 (76.) 7.00 (177.8) 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 CLS-4R 150 5R 1 50.00 (76.) 7.00 (177.8) 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 CLS-5R 170 6R 1 50.00 (76.) 7.00 (177.8) 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 CLS-6R 00 9R 1 50.00 (76.) 7.00 (177.8) 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 CLS-9R 0 1R 1 50.00 (76.) 7.00 (177.8) 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 CLS-1R 90 18R 50.00 (76.) 7.00 (177.8) 10.80 (74.) 16 (7.6) TC6666470 TC66664704 TC667000 CLS-18R 450 4R 50.00 (76.) 7.00 (177.8) 10.80 (74.) 16 (7.6) TC6666470 TC66664704 TC667000 CLS-4R 5 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 ACLS-5 70 R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 ACLS-R 100 R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 ACLS-R 10 4R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 ACLS-4R 150 5R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 ACLS-5R 170 6R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 ACLS-6R 00 9R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 ACLS-9R 0 1R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 ACLS-1R 90 18R 50.00 (76.) Not applicable 10.80 (74.) 16 (7.6) TC6666470 TC66664704 TC667000 ACLS-18R 450 4R 50.00 (76.) Not applicable 10.80 (74.) 16 (7.6) TC6666470 TC66664704 TC667000 ACLS-4R 5 1 50.00 (76.) Not applicable 10.80 (74.) 8 (.6) TC6666470 TC66664704 TC667000 BCLS-5 70 R 1 50.00 (76.) Not applicable 10.80 (74.) 8 (.6) TC6666470 TC66664704 TC667000 BCLS-R 100 R 1 50.00 (76.) Not applicable 10.80 (74.) 8 (.6) TC6666470 TC66664704 TC667000 BCLS-R 10 4R 1 50.00 (76.) Not applicable 10.80 (74.) 8 (.6) TC6666470 TC66664704 TC667000 BCLS-4R 150 5R 1 50.00 (76.) Not applicable 10.80 (74.) 8 (.6) TC6666470 TC66664704 TC667000 BCLS-5R 170 6R 1 50.00 (76.) Not applicable 10.80 (74.) 8 (.6) TC6666470 TC66664704 TC667000 BCLS-6R 00 9R 1 50.00 (76.) Not applicable 10.80 (74.) 8 (.6) TC6666470 TC66664704 TC667000 BCLS-9R 0 1R 1 50.00 (76.) Not applicable 10.80 (74.) 8 (.6) TC6666470 TC66664704 TC667000 BCLS-1R 90 18R 50.00 (76.) Not applicable 10.80 (74.) 17 (7.7) TC6666470 TC66664704 TC667000 BCLS-18R 450 4R 50.00 (76.) Not applicable 10.80 (74.) 17 (7.7) TC6666470 TC66664704 TC667000 BCLS-4R 5 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 HCLS-5 70 R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 HCLS-R 100 R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 HCLS-R 10 4R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 HCLS-4R 150 5R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 HCLS-5R 170 6R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 HCLS-6R 00 9R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 HCLS-9R 0 1R 1 50.00 (76.) Not applicable 10.80 (74.) 7 (.18) TC6666470 TC66664704 TC667000 HCLS-1R 90 18R 50.00 (76.) Not applicable 10.80 (74.) 16 (7.6) TC6666470 TC66664704 TC667000 HCLS-18R 450 4R 50.00 (76.) Not applicable 10.80 (74.) 16 (7.6) TC6666470 TC66664704 TC667000 HCLS-4R Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-59
.6 Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses CLS Type Limiting Fuses, continued Maximum Design Voltage (kv) (Amperes) R Designation Barrel Number Interrupting rms (ka Sym.) Diameter Clip Center Length Approximate Approximate Dimensions in Inches (mm) Shipping Weight Lbs (kg) Performance Curves Minimum Melting Time Total Clearing Time Peak Let-Through Catalog Number 5.08 0 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5CLS-0 70 R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5CLS-R 100 R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5CLS-R 10 4R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5CLS-4R 150 5R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5CLS-5R 170 6R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5CLS-6R 00 9R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5CLS-9R 0 1R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5CLS-1R 90 18R 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 5CLS-18R 450 4R 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 5CLS-4R 5.08 0 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5ACLS-0 70 R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5ACLS-R 100 R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5ACLS-R 10 4R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5ACLS-4R 150 5R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5ACLS-5R 170 6R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5ACLS-6R 00 9R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5ACLS-9R 0 1R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5ACLS-1R 90 18R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 5ACLS-18R 450 4R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 5ACLS-4R 4. 480 6R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 4ACLS-6R 5.08 0 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5BCLS-0 70 R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5BCLS-R 100 R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5BCLS-R 10 4R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5BCLS-4R 150 5R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5BCLS-5R 170 6R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5BCLS-6R 00 9R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5BCLS-9R 0 1R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5BCLS-1R 90 18R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 5BCLS-18R 450 4R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 5BCLS-4R 4. 480 6R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 4BCLS-6R 5.08 0 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5HCLS-0 70 R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5HCLS-R 100 R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5HCLS-R 10 4R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5HCLS-4R 150 5R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5HCLS-5R 170 6R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5HCLS-6R 00 9R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5HCLS-9R 0 1R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6669060 TC6669070 TC667000 5HCLS-1R 90 18R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 5HCLS-18R 450 4R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6669060 TC6669070 TC667000 5HCLS-4R V14-T-60 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses.6 CLS Type Limiting Fuses, continued Maximum Design Voltage (kv) (Amperes) R Designation Barrel Number Interrupting rms (ka Sym.) Diameter Clip Center Length Approximate Approximate Dimensions in Inches (mm) Shipping Weight Lbs (kg) Performance Curves Minimum Melting Time Total Clearing Time Peak Let-Through Catalog Number 5.08 70 R 50.00 (76.) Not applicable 15.90 (40.9) 0 (9.08) TC6669060 TC6669070 TC667000 5CLS70-R 100 R 50.00 (76.) Not applicable 15.90 (40.9) 0 (9.08) TC6669060 TC6669070 TC667000 5CLS70-R 10 4R 50.00 (76.) Not applicable 15.90 (40.9) 0 (9.08) TC6669060 TC6669070 TC667000 5CLS70-4R 150 5R 50.00 (76.) Not applicable 15.90 (40.9) 0 (9.08) TC6669060 TC6669070 TC667000 5CLS70-5R 170 6R 50.00 (76.) Not applicable 15.90 (40.9) 0 (9.08) TC6669060 TC6669070 TC667000 5CLS70-6R 00 9R 50.00 (76.) Not applicable 15.90 (40.9) 0 (9.08) TC6669060 TC6669070 TC667000 5CLS70-9R 0 1R 50 4.00 (101.6) Not applicable 15.90 (40.9) 40 (18.16) TC6669060 TC6669070 TC667000 5CLS70-1R 90 18R 50 4.00 (101.6) Not applicable 15.90 (40.9) 40 (18.16) TC6669060 TC6669070 TC667000 5CLS70-18R 450 4R 50 4.00 (101.6) Not applicable 15.90 (40.9) 40 (18.16) TC6669060 TC6669070 TC667000 5CLS70-4R 600 R 50 4.00 (101.6) Not applicable 15.90 (40.9) 40 (18.16) TC6669060 TC6669070 TC667000 5CLS70-R 650 6R 50 4.00 (101.6) Not applicable 15.90 (40.9) 40 (18.16) TC6669060 TC6669070 TC667000 5CLS70-6R 700 44R 50 4.00 (101.6) Not applicable 15.90 (40.9) 40 (18.16) TC6669060 TC6669070 TC667000 5CLS70-44R 5.5 70 R 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC51850 TC518540 TC6670004 5LCLS-R 100 R 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC51850 TC518540 TC6670004 5LCLS-R 10 4R 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC51850 TC518540 TC6670004 5LCLS-4R 150 5R 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC51850 TC518540 TC6670004 5LCLS-5R 170 6R 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC51850 TC518540 TC6670004 5LCLS-6R 00 9R 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC51850 TC518540 TC6670004 5LCLS-9R 0 1R 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC51850 TC518540 TC6670004 5LCLS-1R 90 18R 50.00 (76.) 14.00 (55.6) 17.90 (454.7) (9.99) TC51850 TC518540 TC6670004 5LCLS-18R 450 4R 50.00 (76.) 14.00 (55.6) 17.90 (454.7) (9.99) TC51850 TC518540 TC6670004 5LCLS-4R 8. 70 R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6670005 8CLS-R 100 R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6670005 8CLS-R 10 4R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6670005 8CLS-4R 150 5R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6670005 8CLS-5R 170 6R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6670005 8CLS-6R 7. 00 9R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6670005 7CLS-9R 0 1R 1 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6670005 7CLS-1R 90 18R 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 16 (7.6) TC6670060 TC6670070 TC6670005 7CLS-18R 450 4R 50.00 (76.) 1.00 (04.8) 15.90 (40.9) 16 (7.6) TC6670060 TC6670070 TC6670005 7CLS-4R 8. 70 R 1 50.00 (76.) Not applicable 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6674005 7BCLS-R 100 R 1 50.00 (76.) Not applicable 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6674005 7BCLS-R 10 4R 1 50.00 (76.) Not applicable 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6674005 7BCLS-4R 150 5R 1 50.00 (76.) Not applicable 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6674005 7BCLS-5R 170 6R 1 50.00 (76.) Not applicable 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6674005 7BCLS-6R 7. 00 9R 1 50.00 (76.) Not applicable 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6674005 7BCLS-9R 0 1R 1 50.00 (76.) Not applicable 15.90 (40.9) 7 (.18) TC6670060 TC6670070 TC6674005 7BCLS-1R 90 18R 50.00 (76.) Not applicable 15.90 (40.9) 16 (7.6) TC6670060 TC6670070 TC6674005 7BCLS-18R 450 4R 50.00 (76.) Not applicable 15.90 (40.9) 16 (7.6) TC6670060 TC6670070 TC6674005 7BCLS-4R 8. 70 R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6670060 TC6670070 TC6674005 8ACLS-R 100 R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6670060 TC6670070 TC6674005 8ACLS-R 10 4R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6670060 TC6670070 TC6674005 8ACLS-4R 150 5R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6670060 TC6670070 TC6674005 8ACLS-5R 170 6R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6670060 TC6670070 TC6674005 8ACLS-6R Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-61
.6 Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses CLS Type Limiting Fuses, continued Maximum Design Voltage (kv) (Amperes) R Designation Barrel Number Interrupting rms (ka Sym.) Diameter Clip Center Length Approximate Approximate Dimensions in Inches (mm) Shipping Weight Lbs (kg) Performance Curves Minimum Melting Time Total Clearing Time Peak Let-Through Catalog Number 7. 00 9R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6670060 TC6670070 TC6674005 7ACLS-9R 0 1R 1 50.00 (76.) Not applicable 15.90 (40.9) 8 (.6) TC6670060 TC6670070 TC6674005 7ACLS-1R 90 18R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6670060 TC6670070 TC6674005 7ACLS-18R 450 4R 50.00 (76.) Not applicable 15.90 (40.9) 17 (7.7) TC6670060 TC6670070 TC6674005 7ACLS-4R 450 4R 50.00 (76.) Not applicable 15.90 (40.9) 0 (9.08) TC6670060 TC6670070 TC6674005 7CLS70-4R 650 6R 50.00 (76.) Not applicable 15.90 (40.9) 0 (1.6) TC6670060 TC6670070 TC6674005 7CLS70-6R 700 44R 50 4.00 (101.6) Not applicable 15.90 (40.9) 40 (18.16) TC6670060 TC6670070 TC6674005 7CLS70-44R 8. 15 Not applicable 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC666640 TC666640 TC6667980 8CLS-15 0 Not applicable 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC666640 TC666640 TC6667980 8CLS-0 60 Not applicable 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC666640 TC666640 TC6667980 8CLS-60 70 Not applicable 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC666640 TC666640 TC6667980 8CLS-70 90 Not applicable 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC666640 TC666640 TC6667980 8CLS-90 110 Not applicable 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC666640 TC666640 TC6667980 8CLS-110 15 Not applicable 1 50.00 (76.) 14.00 (55.6) 17.90 (454.7) 11 (4.99) TC666640 TC666640 TC6667980 8CLS-15 150 Not applicable 50.00 (76.) 14.00 (55.6) 17.90 (454.7) (9.99) TC666640 TC666640 TC6667980 8CLS-150 00 Not applicable 50.00 (76.) 14.00 (55.6) 17.90 (454.7) (9.99) TC666640 TC666640 TC6667980 8CLS-00 5 Not applicable 50.00 (76.) 14.00 (55.6) 17.90 (454.7) (9.99) TC666640 TC666640 TC6667980 8CLS-5 V14-T-6 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses.6 Dimensions Approximate Dimensions in Inches (mm) CLS Type Fuse.1 (84.1) Ref. 10.81 (74.6) 0.06 for CLS 15.85 (40.6) 0.06 for 5, 7 and 8CLS 10.81 (74.6) 0.06 for CLS 15.85 (40.6) 0.06 for 5, 7 and 8CLS.00 Dia. Ref. (76.) 5BCLS and 7BCLS Type Fuses 0.455 (11.6) Dia. x 0.91 Slot (4).1 (5.8) 1.5 (8.9).1 (84.1).1 (5.8) BCLS Type Fuse 0.455 (11.6) Dia. x 0.91 Slot (4) 17.88.00 (454.) (76.) Ref. 19.5 (488.9).1 (5.8) 1.5 (8.9) 17.88.00 (454.) (76.) Ref. 19.5 (488.9) 17.88 (454.) 0.06 19.5 (488.9) Ref. 17.88 (454.) 0.06 19.5 (488.9) Ref..1 (84.1).00 (76.) Ref..00 (76.) Ref..1 (5.8) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-6
.6 Limiting Fuses ACLS, BCLS, CLS, HCLS and NCLS Type Fuses CLS Type Mountings and Hardware Maximum Design Voltage (kv) Note Disconnect only. Ampere Fuse Mounting Type Voltage BIL (kv) Mounting (Including Live Parts, End Fittings) Porcelain Insulator Glass-Polyester Insulator Live Parts (Including End Fittings) End Fittings (Disconnect Only).54 5 0 Non-disconnect 60 CLE-PNM-D CLE-GNM-D CLE-NL-D Disconnect 60 CLE-PDM-D CLE-GDM-E CLE-DL-D CLE-DF-D 90 450 Non-disconnect 60 CLE-PNM-E CLE-GNM-E CLE-NL-E Disconnect 60 CLE-PDM-E CLE-GDM-E CLE-DL-E CLE-DF-E 5.5 (CLS) 0 0 Non-disconnect 60 5HLE-PNM-D 5HLE-GNM-D CLE-NL-D Disconnect 60 5HLE-PDM-D 5HLE-GDM-E CLE-DL-D CLE-DF-D 90 480 Non-disconnect 60 5HLE-PNM-E 5HLE-GNM-E CLE-NL-E Disconnect 60 5HLE-PDM-E 5HLE-GDM-E CLE-DL-E CLE-DF-E 5.5 (LCLS) 70 0 Non-disconnect 60 5CLE-PNM-D 5CLE-GNM-D CLE-NL-D Disconnect 60 5CLE-PDM-D 5CLE-GDM-D CLE-DL-D CLE-DF-D 75 8CLE-PDM-D 8CLE-GDM-D CLE-DL-D CLE-DF-D 90 450 Non-disconnect 60 5CLE-PNM-E 5CLE-GNM-E CLE-NL-E Disconnect 60 5CLE-PDM-E 5CLE-GDM-E CLE-DL-E CLE-DF-E 75 8CLE-PDM-E 8CLE-PDM-E CLE-DL-E CLE-DF-E 8. 70 100 Non-disconnect 75 8HLE-PNM-D 8HLE-GNM-D CLE-NL-D 10 0 Disconnect 75 8HLE-PDM-D 8HLE-GDM-D CLE-DL-D CLE-DF-D 7. 90 450 Non-disconnect 75 8HLE-PDM-E 8HLE-GNM-E CLE-NL-E Disconnect 75 8HLE-PDM-E 8HLE-GDM-E CLE-DL-E CLE-DF-E 8. 15 0 Non-disconnect 75 8CLE-PNM-D 8CLE-GNM-D CLE-NL-D 60 15 Disconnect 75 8CLE-PDM-D 8CLE-GDM-D CLE-DL-D CLS-DF-D 150 5 Non-disconnect 75 8CLE-PNM-E 8CLE-GNM-E CLE-NL-E Disconnect 75 8CLE-PDM-E 8CLE-GDM-E CLE-DL-E CLE-DF-E V14-T-64 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CLT Type Fuses.7 CLT Fuse Contents Description CLT Type Fuses Product Selection....................... Dimensions............................ Page V14-T-66 V14-T-66 CLT Type Fuses Applications Eaton s CLT fuses are designed specifically to provide fault protection on high capacity indoor and underground distribution systems. These general purpose current limiting fuses meet or exceed C7 standards for this class of distribution fuse. CLT fuses may be used in conjunction with EFD load break switches that meet the full switching requirements of underground distribution systems using pad-mounted transformers. In addition, CLT fuses may be applied in pad-mounted transformer drawout wells or in conjunction with LBOR oil switches as a means of lowcost transformer protection. Fuse s Available Voltage (kv) Amperes.75 5 150 5.5 8 60 8. 5 45 14.4 0 15.5 4 18 CLT Features CLT type current limiting fuses offer a number of desirable advantages. Consider the following during the selection process: Quiet Safe Operation: CLT fuses are nonindicating and will clear all currents from minimum melting to maximum interrupting rating without any external disturbance or expulsion of gas Limits Fault Let- Through: The let-through current for a high shortcircuit fault is limited to a value far below the available peak current because the current is forced to zero before the end of the first half cycle Arc-Voltage Protection: CLT fuses control the arc voltage that is produced during current limitation to less than three times the normal operating voltage rating Maintains Non- Conductance After Interruption: Specially designed cores prevent internal flash through when rated voltage remains across the fuse after interruption Low-Cost Transformer Protection: The CLT fuse can be used in EFD load break switches and dry well drawout holders Construction and Operation CLT fuses are constructed with pure silver fuse elements, high purity silica sand fill with controlled grain size, a specially designed core, and a glassepoxy outer casing. During a high fault current, the silver element(s) melts almost instantly losing energy to the surrounding sand. The energy melts the sand forming a glasslike substance commonly referred to as fulgurite. The arc voltage rapidly increases to about three times the fuse voltage rating, forcing the current to zero. The fault current is interrupted in one-half cycle or less without noise or expulsion of gases. limiting action occurs only when the current is above the threshold current for the fuse, that is, the current is high enough to melt the fuse element(s) before the peak value of current is reached in the first half cycle. Low level currents are cleared by the melting of a tin solder drop on the fuse element that in turn causes the silver element to melt. This is called the M-effect. The silver element then burns back until there is sufficient internal gap to interrupt the current. s and Selection When a decision has been made to use current limiting fuses, the minimum amount of information required to make the proper selection is: Voltage rating rating Interrupting rating Mounting method See the table on Page V14-T-66 for assistance in selecting the correct fuse catalog number. These types of fuses are designed specifically to provide fault protection on high capacity indoor and underground distribution systems. Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-65
.7 Limiting Fuses CLT Type Fuses Product Selection CLT Type Limiting Fuses Maximum Design Voltage (kv) Dimensions Approximate Dimensions in Inches (mm). The drawing below specifies certain dimensions and references other dimensions. Refer to the table above for the referenced dimensions of particular CLT type fuses. CLT Type Fuse (Amperes) Catalog Number Barrel Number Interrupting rms (ka Sym.) Approx. Diameter in (mm) Length (Inches) Approx. Shipping Weight (Lbs) Performance Curves Minimum Melting Time Total Clearing Time Peak Let- Through.75 5 CLT-5 1 5 1.60 (40.6) 9.70 (46.4) 1.5 TC59885801 TC66675901 TC6909001 1 CLT-1 1 5 1.60 (40.6) 9.70 (46.4) 1.5 18 CLT-18 1 5 1.60 (40.6) 9.70 (46.4) 1.5 5 CLT-5 1 5 1.60 (40.6) 9.70 (46.4) 1.5 0 CLT-0 1 5 1.60 (40.6) 9.70 (46.4) 1.5 75 CLT-75 1 5 1.60 (40.6) 9.70 (46.4) 1.5 90 CLT-90 1 5.5 (57.1) 9.76 (48.0).5 150 CLT-150 1 5.5 (57.1) 9.76 (48.0).5 5.5 8 5CLT-8 1 5 1.60 (40.6) 9.70 (46.4) 1.5 TC5988580 TC6667590 TC690900 1 5CLT-1 1 5 1.60 (40.6) 9.70 (46.4) 1.5 18 5CLT-18 1 5 1.60 (40.6) 9.70 (46.4) 1.5 5 5CLT-5 1 5 1.60 (40.6) 9.70 (46.4) 1.5 0 5CLT-0 1 5.5 (57.1) 9.76 (48.0).5 45 5CLT-45 1 5.5 (57.1) 9.76 (48.0).5 60 5CLT-60 1 5.5 (57.1) 9.76 (48.0).5 8. 5 8CLT-5 1 5 1.60 (40.6) 9.70 (46.4) 1.5 TC59885805 TC66675905 TC690900 8 8CLT-8 1 5 1.60 (40.6) 9.70 (46.4) 1.5 1 8CLT-1 1 5 1.60 (40.6) 9.70 (46.4) 1.5 18 8CLT-18 1 5 1.60 (40.6) 9.70 (46.4) 1.5 5 8CLT-5 1 5 1.60 (40.6) 9.70 (46.4) 1.5 0 8CLT-0 1 5 1.60 (40.6) 11.00 (79.4) 1.5 0 8CLT-0 1 5.5 (57.1) 9.76 (48.0).5 45 8CLT-45 1 5.5 (57.1) 9.76 (48.0).5 15.5 4 15CLT-4 1 5.5 (57.1) 9.76 (48.0).5 TC59885701 TC66676001 TC694701 5 15CLT-5 1 5.5 (57.1) 9.76 (48.0).5 8 15CLT-8 1 5.5 (57.1) 9.76 (48.0).5 1 15CLT-1 1 5.5 (57.1) 9.76 (48.0).5 18 15CLT-18 1 5.5 (57.1) 9.76 (48.0).5 14.4 0 15CLT-0 1 5.5 (57.1) 9.76 (48.0).5 TC59885701 TC66676001 TC694701 0.6 (15.7) 0.50-0 (6.-5.1) Threads (Both Ends) Length 0.6 (15.7) V14-T-66 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CX, CXI and CXN Type Fuses.8 Eaton CX Fuses Contents Description CX, CXI and CXN Type Fuses CXN Construction....................... CXN s........................... CX Construction and Operation............. Product Selection....................... Dimensions............................ Page V14-T-68 V14-T-68 V14-T-68 V14-T-69 V14-T-75 CX, CXI and CXN Type Fuses Applications Eaton s CX, CXI and CXN general purpose current limiting fuses are designed specifically to provide complete fault protection on high capacity indoor and underground distribution systems. These fuses are C-rated and exceed the requirements of C7 standards for general purpose distribution current limiting fuses. Pad-mounted and submersible three-phase and single-phase transformers Pad-mounted and submersible switch and fuse units Station service protection Primary switch and fuse units on mine rectifiers Note: CXI fuses are not suitable for submersible applications. CXN fuses are applied in: Power transformer protection Power centers Load interrupters Feeder circuit protection Mine rectifiers CX, CXI and CXN Features CX and CXN type current limiting fuses offer a number of desirable advantages. Consider the following during the selection process: Quiet Safe Operation: CX and CXN fuses are nonindicating devices CXI fuses are indicating devices. These fuses will clear all currents from their minimum melting current to their maximum interrupting rating without any external disturbance or expulsion of gas Limits Fault Let- Through: The let-through current for a high shortcircuit fault is limited to a value far below the available peak current because the current is forced to zero before the end of the first half cycle Arc-Voltage Protection: CX and CXN fuses control the arc voltage that is produced during current limitation to less than three times the normal operating voltage rating Maintains Non- Conductance After Interruption: An inorganic core with spaced arc guards prevent internal flash through when rated voltage remains across the fuse after interruption Fits Many Mountings: CX and CXN fuses can be used in disconnect and non-disconnect mountings. CX fuses can be used in EFD load break switches through 8. kv and dry well drawout fuse holders Interchangeable: CX and CXI fuses are a direct replacement for competitive general purpose distribution class current limiting fuses Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-67
.8 Limiting Fuses CX, CXI and CXN Type Fuses CXN Construction CXN type fuses are constructed with pure silver fuse elements, high purity silica sand filler with controlled grain size, an inorganic core with spaced arc suppressors, and a glass melamine or glass epoxy outer casing. The end studs of CXN fuses are identical to the CX type. However, CXN fuses have a much higher C-rating, are longer in physical length and larger in diameter. The diameters are or 4 inches depending on the ratings. CXN s The C-rating range is from 60C to 00C at 8. kv, with some ratings including 00C being achieved by paralleling two () 150C single barrel fuses. At 15 kv, the ranges are 45C to 175C, with 10C, 150C and 175C being achieved by paralleling single barrel fuses. The tested and approved parallel ratings are specified in the product selection tables. CX Construction and Operation CX and CXI type fuses are constructed with pure silver fuse elements, high purity silica sand filler with controlled grain size, an inorganic core with spaced arc suppressors, and a glass melamine or glass epoxy outer casing. During a high fault current, the silver element(s) melts almost instantly losing energy to the surrounding sand. The energy melts the sand forming a glass-like substance commonly referred to as fulgurite. The arc voltage rapidly increases to about three times the fuse voltage rating, forcing the current to zero. The fault current is interrupted in onehalf cycle or less without noise or expulsion of gases. limiting action occurs only when the current is above the threshold current for the fuse, that is, the current is high enough to melt the fuse elements) before the peak value of current is reached in the first half cycle. Low level currents are cleared by the melting of a tin solder drop on the fuse element that in turn causes the silver element to melt. This is called the M-effect. The silver element then burns back until there is sufficient internal gap to interrupt the current. In some instances where the required C-rating exceeds the limits of CX fuses, it is possible to move the live parts to accommodate the longer CXN fuse, and where space and clearances present no problem, the larger CXN fuse can be substituted for a CX fuse. V14-T-68 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CX, CXI and CXN Type Fuses.8 Product Selection CX Type CX Type CX Type Limiting Fuses 4. kv Maximum (.4 kv Nominal) Diameter Length Approximate Performance Curves Interrupting Fuse Shipping Minimum Total Barrel rms Mounting Approximate Dimensions Weight Melting Clearing (Amperes) Number (ka Sym.) Code in Inches (mm) Lbs (kg) Time Time CX Type Mountings and Hardware 4. kv Maximum (.4 kv Nominal) Mounting Live Parts End Fittings (Including Live Parts, End Fittings) (Including End Fittings) (Disconnect Only) Ampere Fuse Mounting Voltage Porcelain Insulator Glass-Polyester Insulator Type Size BIL (kv) Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through I t Catalog Number Non-Indicating 18C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC70544101 TC70544501 TC70544901 TC70545101 4CX-18C 5C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC70544101 TC70544501 TC70544901 TC70545101 4CX-5C 5C 1 50 G.00 (50.8) 10.00 (54.0) 1 (0.45) TC70544101 TC70544501 TC70544901 TC70545101 4CX-5C 45C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC70544101 TC70544501 TC70544901 TC70545101 4CX-45C 50C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC70544101 TC70544501 TC70544901 TC70545101 4CX-50C 60C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC7054450 TC70544901 TC70545101 4CX-60C 65C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC70544501 TC70544901 TC70545101 4CX-65C 75C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC70544501 TC70544901 TC70545101 4CX-75C 80C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC7054450 TC70544901 TC70545101 4CX-80C 100C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC70544501 TC70544901 TC70545101 4CX-100C Indicating 18C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC70544101 TC70544501 TC70544901 TC70545101 4CXI-18C 5C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC70544101 TC70544501 TC70544901 TC70545101 4CXI-5C 5C 1 50 G.00 (50.8) 10.00 (54.0) 1 (0.45) TC70544101 TC70544501 TC70544901 TC70545101 4CXI-5C 45C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC70544101 TC70544501 TC70544901 TC70545101 4CXI-45C 50C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC70544101 TC70544501 TC70544901 TC70545101 4CXI-50C 60C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC7054450 TC70544901 TC70545101 4CXI-60C 65C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC70544501 TC70544901 TC70545101 4CXI-65C 75C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC70544501 TC70544901 TC70545101 4CXI-75C 80C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC7054450 TC70544901 TC70545101 4CXI-80C 100C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054410 TC70544501 TC70544901 TC70545101 4CXI-100C 18C 100C Non-disconnect A 60 5CX-GNM-G CX-NL Disconnect A 60 5CX-GDM-G CX-DL CX-DF Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-69
.8 Limiting Fuses CX, CXI and CXN Type Fuses CX Type CX Type Limiting Fuses 5.5 kv Maximum (4.8 kv Nominal) Diameter Length Approximate Performance Curves Interrupting Fuse Shipping Minimum Total Barrel rms Mounting Approximate Dimensions Weight Melting Clearing (Amperes) Number (ka Sym.) Code in Inches (mm) Lbs (kg) Time Time CX Type Mountings and Hardware 5.5 kv Maximum (4.8 kv Nominal) Mounting Live Parts End Fittings (Including Live Parts, End Fittings) (Including End Fittings) (Disconnect Only) Ampere Fuse Mounting Voltage Porcelain Insulator Glass-Polyester Insulator Type Size BIL (kv) Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through I t Catalog Number Non-Indicating 10C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CX-10C 1C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CX-1C 18C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CX-18C 0C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CX-0C 1C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC705440 TC7054460 TC7054490 TC7054501 5CX-1C 5C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CX-5C 0C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CX-0C 5C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC705440 TC7054460 TC7054490 TC7054501 5CX-5C 40C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CX-40C 50C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CX-50C 60C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC705440 TC7054460 TC7054490 TC7054501 5CX-60C 65C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CX-65C 75C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CX-75C Indicating 10C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-10C 1C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-1C 18C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-18C 0C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-0C 1C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC705440 TC7054460 TC7054490 TC7054501 5CXI-1C 5C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-5C 0C 1 50 G 1.1 (8.7) 10.00 (54.0) 1 (0.45) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-0C 5C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC705440 TC7054460 TC7054490 TC7054501 5CXI-5C 40C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-40C 50C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-50C 60C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC705440 TC7054460 TC7054490 TC7054501 5CXI-60C 65C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-65C 75C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544601 TC7054490 TC7054501 5CXI-75C 10C 75C Non-disconnect A 60 5CX-GNM-G CX-NL Disconnect A 60 5CX-GDM-G CX-DL CX-DF V14-T-70 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CX, CXI and CXN Type Fuses.8 CX Type CX Type Limiting Fuses 8. kv Maximum (7. kv Nominal) Diameter Length Approximate Performance Curves Interrupting Fuse Shipping Minimum Total Barrel rms Mounting Approximate Dimensions Weight Melting Clearing (Amperes) Number (ka Sym.) Code in Inches (mm) Lbs (kg) Time Time CX Type Mountings and Hardware 8. kv Maximum (7. kv Nominal) Mounting Live Parts End Fittings (Including Live Parts, End Fittings) (Including End Fittings) (Disconnect Only) Ampere Fuse Mounting Voltage Porcelain Insulator Glass-Polyester Insulator Type Size BIL (kv) Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through I t Catalog Number Non-Indicating.5C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CX-.5C 4C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CX-4C 4.5C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-4.5C 6C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-6C 7C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CX-7C 8C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-8C 10C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-10C 1C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-1C 15C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CX-15C 18C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-18C 0C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-0C 5C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-5C 0C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-0C 5C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CX-5C 40C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CX-40C Indicating.5C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CXI-.5C 4C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CXI-4C 4.5C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-4.5C 6C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-6C 7C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CXI-7C 8C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-8C 10C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-10C 1C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-1C 15C 1 50 G 1.1 (8.7) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CXI-15C 18C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-18C 0C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-0C 5C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-5C 0C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-0C 5C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC705440 TC7054470 TC70545001 TC7054501 8CXI-5C 40C 1 50 G.00 (50.8) 10.00 (54.0) (0.91) TC7054401 TC70544701 TC70545001 TC7054501 8CXI-40C.5C 40C Non-disconnect B 75 8CX-GNM-G CX-NL Disconnect B 75 8CX-GDM-G CX-DL CX-DF Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-71
.8 Limiting Fuses CX, CXI and CXN Type Fuses CX Type CX Type Limiting Fuses 15.5 kv Maximum (14.4 kv Nominal) Diameter Length Approximate Performance Curves Interrupting Fuse Shipping Minimum Total Barrel rms Mounting Approximate Dimensions Weight Melting Clearing (Amperes) Number (ka Sym.) Code in Inches (mm) Lbs (kg) Time Time CX Type Mountings and Hardware 15.5 kv Maximum (14.4 kv Nominal) Mounting Live Parts End Fittings (Including Live Parts, End Fittings) (Including End Fittings) (Disconnect Only) Ampere Fuse Mounting Voltage Porcelain Insulator Glass-Polyester Insulator Type Size BIL (kv) Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through I t Catalog Number Non-Indicating 4C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-4C 6C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-6C 7C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC7054440 TC7054480 TC7054500 TC70545401 15CX-7C 8C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-8C 10C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-10C 1C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-1C 15C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC7054440 TC7054480 TC7054500 TC70545401 15CX-15C 18C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-18C 0C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-0C 5C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-5C 0C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-0C 40C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CX-40C Indicating 4C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-4C 6C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-6C 7C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC7054440 TC7054480 TC7054500 TC70545401 15CXI-7C 8C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-8C 10C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-10C 1C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-1C 15C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC7054440 TC7054480 TC7054500 TC70545401 15CXI-15C 18C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-18C 0C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-0C 5C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-5C 0C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-0C 40C 1 50 G.00 (50.8) 14.0 (6.) (0.91) TC70544401 TC70544801 TC7054500 TC70545401 15CXI-40C 4C 40C Non-disconnect C 95 15CX-GNM-G CX-NL Disconnect C 95 15CX-GDM-G CX-DL CX-DF V14-T-7 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CX, CXI and CXN Type Fuses.8 CXN Type Type CXN CXN Type Limiting Fuses 8. kv Maximum (7. kv Nominal) Diameter Length Approximate Performance Curves Interrupting Shipping Minimum Total Barrel Approximate Dimensions Weight Melting Clearing (Amperes) Number rms (ka Sym.) in Inches (mm) Lbs (kg) Time Time CXN Type Mountings and Hardware 8. kv Maximum (7. kv Nominal) Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through Catalog Number 60C 1 50.00 (76.) 18.80 (477.5) 8 (.6) TC6667510 TC666750 TC6666490 8CXN-60C 100C 1 50.00 (76.) 18.80 (477.5) 8 (.6) TC6667510 TC666750 TC6666490 8CXN-100C 15C 1 50 4.00 (101.6) 18.80 (477.5) 14 (6.6) TC6667510 TC666750 TC6666490 8CXN-15C 150C 1 50 4.00 (101.6) 18.80 (477.5) 14 (6.6) TC6667510 TC666750 TC6666490 8CXN-150C 00C 1 50 4.00 (101.6) 18.80 (477.5) 14 (6.6) TC6667510 TC666750 TC6666490 8CXN-00C 50C 1 50 4.00 (101.6) 18.80 (477.5) 14 (6.6) TC6667510 TC666750 TC6666490 8CXN-50C 10C 50.00 (76.) 18.80 (477.5) 16 (7.6) TC66675104 TC6667504 TC6666490 X 60C 8CXN-10C 00C 50.00 (76.) 18.80 (477.5) 16 (7.6) TC66675104 TC6667504 TC6666490 X 100C 8CXN-00C 50C 50.00 (76.) 18.80 (477.5) 16 (7.6) TC66675104 TC6667504 TC6666490 X 15C 8CXN-50C 00C 50 4.00 (101.6) 18.80 (477.5) 8 (1.71) TC66675104 TC6667504 TC6666490 X 150C 8CXN-00C Ampere 60C 100C Single barrel 15C 50C Single barrel 10C, 00C Double barrel 50C, 00C Double barrel Fuse Mounting Type Voltage LIWL (BIL) Glass Polyester Insulator Mounting End Fittings (Including Live Parts, End Fittings) Live Parts (Disconnect Only) Non-disconnect 95 15CXN-GNM-D 15CXN-NL-D Non-disconnect 95 15CXN-GNM-G 15CXN-NL-G Disconnect 95 15CXN-GDM-G 15CXN-DL-G 15CXN-DF-G Non-disconnect 95 15CXN-GNM-F 15CXN-NL-F Non-disconnect 95 15CXN-GNM-G 15CXN-NL-G Disconnect 95 5CXN-GDM-G 15CXN-DL-G 15CXN-DF-G Non-disconnect 95 15CXN-GNM-D 15CXN-NL-D Non-disconnect 95 15CXN-GNM-F 15CXN-NL-F Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-7
.8 Limiting Fuses CX, CXI and CXN Type Fuses CXN Type CXN Type Limiting Fuses 15.5 kv Maximum (14.4 kv Nominal) Diameter Length Approximate Performance Curves Interrupting Shipping Minimum Total Barrel Approximate Dimensions Weight Melting Clearing (Amperes) Number rms (ka Sym.) in Inches (mm) Lbs (kg) Time Time CXN Type Mountings and Hardware 15.5 kv Maximum (14.4 kv Nominal) Notes See Page V14-T-8 for diagram of typical mounting. End fittings supplied only when required. Peak Let-Through Catalog Number 45C 1 50.00 (76.) 18.80 (477.5) 8 (.6) TC6667480 TC6667500 TC6666500 15CXN-45C 60C 1 50.00 (76.) 18.80 (477.5) 8 (.6) TC6667480 TC6667500 TC6666500 15CXN-60C 75C 1 50 4.00 (101.6) 18.80 (477.5) 14 (6.6) TC6667480 TC6667500 TC6666500 15CXN-75C 85C 1 50 4.00 (101.6) 18.80 (477.5) 14 (6.6) TC6667480 TC6667500 TC6666500 15CXN-85C 100C 1 50 4.00 (101.6) 18.80 (477.5) 14 (6.6) TC6667480 TC6667500 TC6666500 15CXN-100C 90C 50.00 (76.) 18.80 (477.5) 16 (7.6) TC66674804 TC66675004 TC6666500 X 45C 15CXN-90C 10C 50.00 (76.) 18.80 (477.5) 16 (7.6) TC66674804 TC66675004 TC6666500 X 60C 15CXN-10C 150C 50 4.00 (101.6) 18.80 (477.5) 8 (1.71) TC66674804 TC66675004 TC6666500 X 75C 15CXN-150C 175C 50 4.00 (101.6) 18.80 (477.5) 8 (1.71) TC66674804 TC66675004 TC6666500 X 85C 15CXN-175C Ampere 45C 60C Single barrel 75C 100C Single barrel 90C, 10C Double barrel 150C, 175C Double barrel Fuse Mounting Type Voltage LIWL (BIL) Glass Polyester Insulator Mounting End Fittings (Including Live Parts, End Fittings) Live Parts (Disconnect Only) Non-disconnect 95 15CXN-GNM-D 15CXN-NL-D Non-disconnect 95 15CXN-GNM-G 15CXN-NL-G Disconnect 95 15CXN-GDM-G 15CXN-DL-G 15CXN-DF-G Non-disconnect 95 15CXN-GNM-F 15CXN-NL-F Non-disconnect 95 15CXN-GNM-G 15CXN-NL-G Disconnect 95 5CXN-GDM-G 15CXN-DL-G 15CXN-DF-G Non-disconnect 95 15CXN-GNM-D 15CXN-NL-D Non-disconnect 95 15CXN-GNM-F 15CXN-NL-F V14-T-74 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses CX, CXI and CXN Type Fuses.8 Dimensions Approximate Dimensions in Inches (mm). CXN Type Fuse C Dia. 1.19 (0.) CX Type Fuse 1.85 (47.0) 1.85 (47.0) B ± 0.09 (.9) A ± 0.09 (.9) 8.00 (0.) ± 0.06 (1.5) 10.00 (54.0) ± 0.09 (.) 8.00 (0.) ± 0.06 (1.5) 10.00 (54.0) ± 0.09 (.) 1.00 (5.4) 8.00 (0.) ± 0.06 (1.5) 10.00 (57.0) ± 0.09 (.) 0.65 (15.9) Dia. 0.65 (15.9) Ref. 0.65 (15.9) Dia. (Both ends) 1.1 Ref. w/indicator 1.19 (0.) Ref. w/o Indicator 1.1 (8.7) Dia. 1.00 (5.4).00 (50.8) Dia. 1.00 (5.4).1 (5.8) Dia. 1.06 (6.9) CXN Type Fuse Dimensional Details Maximum Ampere Dimensions kv A B C 8. 8. 15.5 15.5 60 100 15 50 45 60 75 100 18.86 (479.0) 18.86 (479.0) 18.86 (479.0) 18.86 (479.0) 16.41 (416.8) 16.41 (416.8) 18.86 (479.0) 18.86 (479.0).00 (76.) 4.00 (101.6).00 (76.) 4.00 (101.6) Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-75
.9 Limiting Fuses DSL, MDSL and NPL Type Low Voltage Limiters DSL Limiters DSL, MDSL and NPL Type Low Voltage Limiters Product Description Refer to DSL, Magnum DSL or NPL sections of this catalog for product description and application guidelines. Contents Description Page DSL, MDSL and NPL Type Low Voltage Limiters Product Selection....................... V14-T-77 V14-T-76 Volume 14 Fuses CA08100016E August 011 www.eaton.com
Limiting Fuses DSL, MDSL and NPL Type Low Voltage Limiters.9 Product Selection The following current limiters are available as renewal/replacement parts for use in conjunction with DLL, MDSL low voltage power circuit breakers, and network protectors. Types DSL, MDSL and NPL Maximum Design Voltage Interrupting (ka Sym.) Approx. Shipping Weight Lbs (kg) Average Melting Time Peak Let-Through 600 00 6DSL-A150 140D816G01.00 (1.4) TC697710 TC69770 600 00 6DSL-A00 140D816G0.00 (1.4) TC697710 TC69770 600 00 6DSL-A50 140D816G0.00 (1.4) TC697710 TC69770 600 00 6DSL-A00 140D816G04.00 (1.4) TC697710 TC69770 600 00 6DSL-A400 140D816G05.00 (1.4) TC697710 TC69770 600 00 6DSL-A600 140D816G06.00 (1.4) TC697710 TC69770 600 00 6DSL-A800 140D816G07.00 (1.4) TC697710 TC69770 600 00 6DSL-B100 140D816G10 4.00 (1.8) TC697710 TC69770 600 00 6DSL-B1600 140D816G11 4.00 (1.8) TC697710 TC69770 600 00 6DSL-B000 140D816G1 4.00 (1.8) TC697710 TC69770 600 00 6DSL-C800 151D98G01 5.50 (.5) TC69410 TC6940 600 00 6DSL-C1000 151D98G0 5.50 (.5) TC69410 TC6940 600 00 6DSL-C100 151D98G0 5.50 (.5) TC69410 TC6940 600 00 6DSL-C1600 151D98G04 5.50 (.5) TC69410 TC6940 600 00 6DSL-C000 151D98G05 5.50 (.5) TC69410 TC6940 600 00 6DSL-D500 151D98G09 8.50 (.9) TC69410 TC6940 600 00 6DSL-D000 151D98G10 8.50 (.9) TC69410 TC6940 600 00 6DSL-E500 5980C01G01 0.0 (9.1) TC705500 TC7055040 600 00 6DSL-E000 5980C01G0 0.0 (9.1) TC705500 TC7055040 600 00 6DSL-E4000 5980C01G0 0.0 (9.1) TC705500 TC7055040 600 00 6DSL-F5000 5980C01G04 4.0 (10.9) TC705500 TC7055040 600 00 6MDSL-MA150 598C90G01.00 (1.4) TC697710 TC69770 600 00 6MDSL-MA00 598C90G0.00 (1.4) TC697710 TC69770 600 00 6MDSL-MA50 598C90G0.00 (1.4) TC697710 TC69770 600 00 6MDSL-MA00 598C90G04.00 (1.4) TC697710 TC69770 600 00 6MDSL-MA400 598C90G05.00 (1.4) TC697710 TC69770 600 00 6MDSL-MA600 598C90G07.00 (1.4) TC697710 TC69770 600 00 6MDSL-MA800 598C90G08.00 (1.4) TC697710 TC69770 600 00 6MDSL-MB-100 5981C91G01 4.00 (1.8) TC697710 TC69770 600 00 6MDSL-MB-1600 5981C91G0 4.00 (1.8) TC697710 TC69770 600 00 6MDSL-MB-000 5981C91G0 4.00 (1.8) TC697710 TC69770 600 00 6MDSL-MC-800 5981C9G01 5.50 (.5) TC69410 TC6940 600 00 6MDSL-MC-1000 5981C9G0 5.50 (.5) TC69410 TC6940 600 00 6MDSL-MC-100 5981C9G0 5.50 (.5) TC69410 TC6940 600 00 6MDSL-MC-1600 5981C9G04 5.50 (.5) TC69410 TC6940 600 00 6MDSL-MC-000 5981C9G05 5.50 (.5) TC69410 TC6940 600 00 6MDSL-MD500 5981C9G01 8.50 (.9) TC697710 TC69770 600 00 6MDSL-MD000 5981C9G0 8.50 (.9) TC697710 TC69770 480 150 4NPL-900 140D18G04 TC69480 TC69480 480 150 4NPL-100 140D18G05 TC69480 TC69480 480 150 4NPL-1875 140D18G01 TC694804 TC69480 480 150 4NPL-000 140D18G07 TC694805 TC69480 480 150 4NPL-85 140D18G0 TC694806 TC69480 480 150 4NPL-000 140D18G06 TC694807 TC69480 480 00 4NPL-500 598C64G01 TC7055006 480 00 4NPL-5000 598C64G0 TC7055006 Volume 14 Fuses CA08100016E August 011 www.eaton.com V14-T-77
Appendix 1 General Terms and Conditions of Sale Effective Date: November 1, 017 Eaton Terms & Conditions Contents Description Terms and Conditions of Sale................. Terms of Payment......................... Freight.................................. Warranty................................. Page V14-A1-1 V14-A1- V14-A1- V14-A1- Selling Policy (Supersedes Selling Policy 5-000, dated November 1, 008) Terms and Conditions of Sale The Terms and Conditions of Sale set forth herein, and any supplements which may be attached hereto, constitute the full and final expression of the contract for the sale of products or services (hereinafter referred to as Product(s) or Services by Eaton Corporation (hereinafter referred to as Seller) to the Buyer, and supersedes all prior quotations, purchase orders, correspondence or communications whether written or oral between the Seller and the Buyer. Notwithstanding any contrary language in the Buyer s purchase order, correspondence or other form of acknowledgment, Buyer shall be bound by these Terms and Conditions of Sale when it sends a purchase order or otherwise indicates acceptance of this contract, or when it accepts delivery from Seller of the Products or Services. THE CONTRACT FOR SALE OF THE PRODUCTS OR SERVICES IS EXPRESSLY LIMITED TO THE TERMS AND CONDITIONS OF SALE STATED HEREIN. ANY ADDITIONAL OR DIFFERENT TERMS PROPOSED BY BUYER ARE REJECTED UNLESS EXPRESSLY AGREED TO IN WRITING BY SELLER. No contract shall exist except as herein provided. Complete Agreement No amendment or modification hereto nor any statement, representation or warranty not contained herein shall be binding on the Seller unless made in writing by an authorized representative of the Seller. Prior dealings, usage of the trade or a course of performance shall not be relevant to determine the meaning of this contract even though the accepting or acquiescing party had knowledge of the nature of the performance and opportunity for objection. Quotations Written quotations are valid for 0 days from its date unless otherwise stated in the quotation or terminated sooner by notice. Verbal quotations, unless accepted, expire the same day they are made. A complete signed order must be received by Seller within 0 calendar days of notification of award, otherwise the price and shipment will be subject to re-negotiation. Termination and Cancellation Products Any order may be terminated by the Buyer only by written notice and upon payment of reasonable termination charges, including all progress billings and all incurred direct manufacturing costs. Services Any order may be terminated by the Buyer only by written notice and upon payment of reasonable termination charges including all costs plus profit. Seller shall have the right to cancel any order at any time by written notice if Buyer breaches any of the terms hereof, becomes the subject of any proceeding under state or federal law for the relief of debtors, or otherwise becomes insolvent or bankrupt, generally does not pay its debts as they become due or makes an assignment for the benefit of creditors. Volume 14 Fuses CA08100016E January 018 www.eaton.com V14-A1-1